2A2P5-OHR659True Wireless Earbuds

OHR659 True Wireless Earbuds User Manual 英语English Please read this user manual carefully when using this product. Preface Thank you for purchasing Acer products. For optimum operation, pleas e read this manual carefully before using. Model OHR659 Item Name True W ireless Earbuds Package Contents Heads et x4 Charging Chamber x1 USB Charging Cable x1 User Manual x1 Product Description This TW S earphone is a wireless connectivity-enabled audio product, which is compatible with Android and iOS smartphones, tablets, and other portable electronic devic es. By eliminating the constraints of wired connections, it offers users enhanced convenience and unrestricted mobility, catering to a wide range of application scenarios. Product Specifications Material:ABS Product W eight:65.6g Charging port:Type-C Earphones Size:Earbuds: 25×15×15 mm Earbuds: 26×27.5×17.6 mm Charging case size:85*60*30mm 英语English Product structure diagram 1.Charging compartment display 2.Headphone Indicator Light 3.touch button 4.Charging case 5.Charging port Tips: Gently place the earphones into the external ear canal and adjust the earphones after insertion Adjust the wearing angle to a comfortable angle. 英语English 4 2 3 15 Wireless headphone parameters: 1. Wireless version: V6.0 2. Connection method: Wireless audio receiver 3. Communication distance: Approximately 10 meters (in an open and unobstructed surroundings) 4. Talk time: About 3 hours 5. Music playback time: About 4 hours (at medium volume) 6. Frequency response : 20Hz - 20KHz 7. Product material: ABS 8. Wearing style: Clip-on earbuds/in-ear earbuds Operation Instructions: 1. On Android/iOS devices, go to Bluetooth settings, search for the headphones, and complete the pairing. 2. Place the earbuds in the charging case, and they will automatically power off. The digital display on the case will illuminate. When fully charged, the indicator light will turn off. Multifunction Touch Controls： 1. Pairing: Remove the earbuds from the charging case, and they will automatically pair with each other. Once paired, search for the Bluetooth name on your device and connect. 2. Power On: Remove the earbuds from the charging case for automatic power- on, or press and hold either earbud for 3 seconds to turn on manually. 3. Power Off: Place the earbuds back in the charging case for automatic power- off, or press and hold either earbud for 5 seconds to turn off manually. 4. Auto-Reconnection: After initial pairing, the earbuds will automatically reconnect to the paired device when powered on. 5. Play/Pause: Tap once on either earbud 6. Previous Track: Tap twice on the left earbud; Next Track: Tap twice on the right earbud 7. Volume Up: Tap three times on the right earbud; Volume Down: Tap three times on the left earbud 8. Call Controls: Answer/End Call: Tap once on either earbud; Reject Incoming Call: Press and hold either earbud for 2 seconds 9. Voice Assistant: Press and hold either earbud for 3 seconds Note: This product is compatible with any Bluetooth-enabled device. 英语English 1. Before using this product for the first time, please fully charge it before using it. 2. The product is not a toy, and children under the age of 12 must be used under the supervision of an adult. 3. Please use a 5V/1A charger that has passed the safety certification of a regular manufacturer to avoid damage to the product caused by a fast chargingcharger that supports high voltage 4. Please charge in a safe surroundings, when charging the charging case, please pull out the charging cable as soon as possible after the power is fully charged to avoid damage to the battery caused by long-term charging. The charging method of the charging case is the Type-C interface. 5. This product has a built-in non-removable rechargeable battery, and repeated charging and discharging of the earbuds will lead to a decrease in battery performance over time, which malformation nonchargeable batteries. 6. This product comes with a healthy battery, if it has not been used for a long time, please charge it at least once a month. 7. If you feel skin discomfort when wearing it due to individual differences, please stop wearing it and consult a doctor. 8. When using this product with Wireless connection, please adjust the sound of the earphones to an appropriate volume to avoid hearing damage caused by long-term loud volume. 9. If you use this product while engaging in activities that require concentration, you should pay attention to your own safety and the safety of others, such as when driving or cycling, on roads, construction sites, railways, or walking. You should remove your headphones or adjust the volume to ensure that you can hear the sounds around you, including alarms and warning signals. 10. please follow the relevant regulations of your region or country and use this product as required when driving. 11. This product contains magnetic materials, please keep away from electrical appliances with strong magnetic or electric fields, such as microwave ovens, refrigerators, etc., when using or placing the product. 12. it is recommended to use this product in ansurroundings with a temperature of 0°C~45°C When the ambient temperature is below +5°C, battery performance is limited. 13. Do not use this product in places where it is expressly prohibited to use wireless equipment otherwise it will interfere with other electronic equipment or cause other dangers. 14. Before approaching medical or industrial equipment or boarding a plane, please ask the local staff if they can use it. 15.Before cleaning and maintaining this product, stop using this product, turn off application, and disconnect all connections or cables to other equipment. 16. Please dispose of waste electronic products properly in accordance with local laws and regulations, and do not dispose of electrical and electronic equipment, parts, batteries and other household waste. 17.The power delivered by the charger must be between min 5 Watts required by the ra…

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Shenzhen HTT Technology Co., Ltd. Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 8 Product Name: True Wireless Earbuds Model No.: OHR659 EUT Constructional Details External Photo Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 8 Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 3 of 8 Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 4 of 8 Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 5 of 8 Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 6 of 8 Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 7 of 8 Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 8 of 8 ------End------

Label and Location Size: L: 1.0cm*W: 0.2cm Label and Location FCC ID : 2A2P5-OHR659

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 6 Product Name: True Wireless Earbuds Model No.: OHR659 Internal Photos of the EUT Left side Photo Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 6 Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 3 of 6 Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 4 of 6 Right side Photo Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 5 of 6 Report No.: HTT202607246 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 6 of 6 ------End------

Shenzhen HTT Technology Co., Ltd. Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 1 of 8 RF Exposure evaluation Report Reference No. ..................... : FCC ID............................................. : HTT202607246F02 2A2P5-OHR659 Compiled by ( position+printed name+signature) . : File administrators Heber He Supervised by ( position+printed name+signature) . : Project Engineer Bruce Zhu Approved by ( position+printed name+signature) . : RF Manager Kevin Yang Date of issue .................................... : Jul. 16, 2026 Testing Laboratory Name .............. : Shenzhen HTT Technology Co.,Ltd. Address ............................................ : 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao’an District, Shenzhen, Guangdong, China Applicant’s name ............................ : Acer Gadget Inc. Address ............................................ : 24F., No.112, Sec. 1, Xintai 5th Rd., Xizhi Dist., New Taipei city 221, Taiwan Standard ........................................... : 47CFR §1.1310 47CFR §2.1093 KDB447498 D01 General RF Exposure Guidance v06 Shenzhen HTT Technology Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HTT Technology Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HTT Technology Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : True Wireless Earbuds Manufacturer .................................... : Acer Gadget Inc. Trade Mark ........................................ Acer Model/Type reference ...................... : OHR659 Rating ............................................... : Headphone battery capacity:3.7V/25mAh (polymer battery) Charging bin battery capacity:3.7V/300mAh (polymer battery) Charging interface :USB Type-C Result ............................................... : PASS Report No.: HTT202607246F02 Page 2 of 8 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 2 of 8 T E S T R E P O R T Equipment under Test : True Wireless Earbuds Model /Type : OHR659 Listed Models : N/A Applicant : Acer Gadget Inc. Address : 24F., No.112, Sec. 1, Xintai 5th Rd., Xizhi Dist., New Taipei city 221, Taiwan Manufacturer : Acer Gadget Inc. Address : 24F., No.112, Sec. 1, Xintai 5th Rd., Xizhi Dist., New Taipei city 221, Taiwan Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: HTT202607246F02 Page 3 of 8 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 3 of 8 Contents 1 T E S T S T A N D A R D S ................................................... 4 2 S U M M A R Y .............................................................. 5 2.1 General Remarks 5 2.2 Product Description 5 2.3 Special Accessories 5 2.4 Modifications 5 3 T E S T E N V I R O N M E N T 6 3.1 Address of the test laboratory 6 3.2 Test Facility 6 3.3 Statement of the measurement uncertainty 6 4 T E S T L I M I T 7 4.1 Requirement 7 4.2 Conducted Power Results 8 4.3 Manufacturing tolerance 8 4.4 Evaluation Result 8 4.5 Simultaneous Transmission for SAR Exclusion 8 5 C O N C L U S I O N 8 Report No.: HTT202607246F02 Page 4 of 8 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 4 of 8 1 T E S T S T A N D A R D S The tests were performed according to following standards: ANSI C95.1–1999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. FCC KDB 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Device, RF Exposure, Equipment Authorization Procedures. FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits. FCC CFR 47 part2 2.1093: Radiofrequency radiation exposure evaluation: portable devices Report No.: HTT202607246F02 Page 5 of 8 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 5 of 8 2 S U M M A R Y 2.1 General Remarks Date of receipt of test sample : Jul. 06, 2026 Testing commenced on : Jul. 06, 2026 Testing concluded on : Jul. 16, 2026 2.2 Product Description Product description: True Wireless Earbuds Model/Type reference: OHR659 Power supply: Headphone battery capacity:3.7V/25mAh (polymer battery) Charging bin battery capacity:3.7V/300mAh (polymer battery) Charging interface :USB Type-C Adapter Information (Auxiliary test provided by the lab): Model: GS-0500200 Input: AC100-240V, 50/60Hz, 0.3A max Output: DC 5V, 2A Testing sample ID： HTT202607246-1# (Engineer sample) HTT202607246-2# (Normal sample) Hardware version: / Software version: / Bluetooth : Supported Type: Bluetooth BR/EDR Modulation: GFSK, π/4DQPSK, 8DPSK Operation frequency: 2402MHz~2480MHz Channel number: 79 Channel separation: 1MHz Antenna type: Chip Antenna Antenna gain: 2.70 dBi 2.3 Special Accessories The follow…

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1 Appendix RF Test Data for BT Company: : Acer Gadget Inc. EUT : True Wireless Earbuds FCC ID: : 2A2P5-OHR659 Model Number : OHR659 Report No. : HTT202607246F01 Reviewed By : Heber He 2 1. Duty Cycle 1.1 Test Result 1.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) Packet Type T_on (ms) Period (ms) Duty Cycle (%) Duty Cycle Correction Factor (dB) Max. DC Variation (%) GFSK SISO 2402 DH5 2.913 3.749 77.70 1.10 0.03 2441 DH5 2.914 3.750 77.71 1.10 0.03 2480 DH5 2.914 3.750 77.71 1.10 0.03 Pi/4DQPSK SISO 2402 2DH5 2.920 3.751 77.85 1.09 0.03 2441 2DH5 2.920 3.750 77.87 1.09 0.03 2480 2DH5 2.920 3.750 77.87 1.09 0.03 8DPSK SISO 2402 3DH5 2.922 3.749 77.94 1.08 0.03 2441 3DH5 2.923 3.750 77.95 1.08 0.01 2480 3DH5 2.923 3.750 77.95 1.08 0.03 3 1.2 Test Graph 1.2.1 Ant1 GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV 4 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV 5 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV 6 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV 7 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV 8 2. Bandwidth 2.1 Test Result 2.1.1 OBW Mode TX Type Frequency (MHz) Packet Type ANT 99% Occupied Bandwidth (MHz) Verdict Result Limit GFSK SISO 2402 DH5 1 0.866 / Pass 2441 DH5 1 0.865 / Pass 2480 DH5 1 0.869 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.170 / Pass 2441 2DH5 1 1.166 / Pass 2480 2DH5 1 1.179 / Pass 8DPSK SISO 2402 3DH5 1 1.175 / Pass 2441 3DH5 1 1.177 / Pass 2480 3DH5 1 1.186 / Pass 2.1.2 20dB BW Mode TX Type Frequency (MHz) Packet Type ANT 20dB Bandwidth (MHz) Verdict Result Limit GFSK SISO 2402 DH5 1 0.935 / Pass 2441 DH5 1 0.927 / Pass 2480 DH5 1 0.938 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.310 / Pass 2441 2DH5 1 1.311 / Pass 2480 2DH5 1 1.315 / Pass 8DPSK SISO 2402 3DH5 1 1.283 / Pass 2441 3DH5 1 1.287 / Pass 2480 3DH5 1 1.291 / Pass 9 2.2 Test Graph 2.2.1 OBW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV 10 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV 11 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV 12 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV 13 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV 14 2.2.2 20dB BW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV 15 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV 16 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV 17 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV 18 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV 19 3. Maximum Conducted Output Power 3.1 Test Result 3.1.1 Power Mode TX Type Frequency (MHz) Packet Type Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit GFSK SISO 2402 DH5 0.90 <=30 Pass 2441 DH5 1.05 <=30 Pass 2480 DH5 1.69 <=30 Pass Pi/4DQPSK SISO 2402 2DH5 1.74 <=20.97 Pass 2441 2DH5 1.98 <=20.97 Pass 2480 2DH5 2.58 <=20.97 Pass 8DPSK SISO 2402 3DH5 2.09 <=20.97 Pass 2441 3DH5 2.20 <=20.97 Pass 2480 3DH5 2.76 <=20.97 Pass 20 4. Carrier Frequency Separation 4.1 Test Result 4.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) Packet Type Channel Separation (MHz) 20dB Bandwidth (MHz) Limit (MHz) Verdict GFSK SISO HOPP DH5 0.988 0.938 >=0.938 Pass Pi/4DQPSK SISO HOPP 2DH5 1.001 1.315 >=0.877 Pass 8DPSK SISO HOPP 3DH5 1.008 1.291 >=0.861 Pass 21 4.2 Test Graph 4.2.1 Ant1 GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV 22 8DPSK_3DH5_HOPP_Ant1_NTNV 23 5. Number of Hopping Frequencies 5.1 Test Result 5.1.1 HoppNum Mode TX Type Frequency (MHz) Packet Type Num of Hopping Frequencies Verdict ANT1 Limit GFSK SISO HOPP DH5 79 >=15 Pass Pi/4DQPSK SISO HOPP 2DH5 79 >=15 Pass 8DPSK SISO HOPP 3DH5 79 >=15 Pass 24 5.2 Test Graph 5.2.1 HoppNum GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV 25 8DPSK_3DH5_HOPP_Ant1_NTNV 26 6. Time of Occupancy (Dwell Time) 6.1 Test Result 6.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) Packet Type Duration of Single Pulse (ms) Observation Period (s) Num of Pulse in Observation Period Dwell Time (ms) Limit (ms) Verdict GFSK SISO HOPP DH1 0.416 31.600 320 133.120 <=400 Pass DH3 1.672 31.600 153 255.816 <=400 Pass DH5 2.920 31.600 103 300.760 <=400 Pass Pi/4DQPSK SISO HOPP 2DH1 0.422 31.600 320 135.040 <=400 Pass 2DH3 1.674 31.600 150 251.100 <=400 Pass 2DH5 2.924 31.600 98 286.552 <=400 Pass 8DPSK SISO HOPP 3DH1 0.424 31.600 320 135.680 <=400 Pass 3DH3 1.674 31.600 165 276.210 <=400 Pass 3DH5 2.926 31.600 103 301.378 <=400 Pass 27 6.2 Test Graph 6.2.1 Ant1 GFSK_DH1_HOPP_Ant1_NTNV GFSK_DH1_HOPP_Ant1_NTNV 28 GFSK_DH3_HOPP_Ant1_NTNV GFSK_DH3_HOPP_Ant1_NTNV 29 GFSK_DH5_HOPP_Ant1_NTNV GFSK_DH5_HOPP_Ant1_NTNV 30 Pi/4DQPSK_2DH1_HOPP_Ant1_NTNV Pi/4DQPSK_2DH1_HOPP_Ant1_NTNV 31 Pi/4DQPSK_2DH3_HOPP_Ant1_NTNV Pi/4DQPSK_2DH3_HOPP_Ant1_NTNV 32 Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV 33 8DPSK_3DH1_HOPP_Ant1_NTNV 8DPSK_3DH1_HOPP_Ant1_NTNV 34 8DPSK_3DH3_HOPP_Ant1_NTNV 8DPSK_3DH3_HOPP_Ant1_NTNV 35 8DPSK_3DH5_HOPP_Ant1_NTNV 8DPSK_3DH5_HOPP_Ant1_NTNV 36 7. Unwanted Emissions In Non-restricted Frequency Bands 7.1 Test Result 7.1.1 Ref Mode TX Type Frequency (MHz) Packet Type ANT Level of Reference (dBm) GFSK SISO 2402 DH5 1 0.43 2441 DH5 1 0.58 2480 DH5 1 1.19 HOPP DH5 1 1.50 1.50 Pi/4DQPSK SISO 2402 2DH5 1 0.41 2441 2DH5 1 0.63 2480 2DH5 1 1.21 HOPP 2DH5 1 1.62 1.62 8DPSK SISO 2402 3DH5 1 0.45 2441 3DH5 1 0.51 2480 3DH5 1 1.26 HOPP 3DH5 1 1.66 1.66 7.1.2 CSE Mode TX Type Frequency (MHz) Packet Type ANT Level of Reference (dBm) Limit (dBm) Verdict GFSK SISO 2402 DH5 1 0.43 -19.57 Pass 2441 DH5 1 0.58 -19.42 Pass 2480 DH5 1 1.19 -18.81 Pass HOPP DH5 1 1.50 -18.50 Pass 1.50 -18.50 Pass Pi/4DQPSK SISO 2402 2DH5 1 0.41 -19.59 Pass 2441 2DH5 1 0.63 -19.37 Pass 2480 2DH5 1 1.21 -18.79 Pass HOPP 2DH5 1 1.62 -18.38 Pass 1.62 -18.38 Pass 8DPSK SISO 2402 3DH5 1 0.45 -19.55 Pass 2441 3DH5 1 0.51 -19.49 Pass 2480 3DH5 1 1.26 -18.74 Pass HOPP 3DH5 1 1.66 -18.34 Pass 1.66 -18.34 Pass 37 7.2 Test Graph 7.2.1 Ref GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV 38 GFSK_DH5_HCH_2480MHz_Ant1_NTNV GFSK_DH5_…

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Shenzhen HTT Technology Co., Ltd. Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. .................... : FCC ID. ........................................... : HTT202607246F01 2A2P5-OHR659 Compiled by ( position+printed name+signature) . : File administrators Heber He Supervised by ( position+printed name+signature) . : Project Engineer Bruce Zhu Approved by ( position+printed name+signature) . : RF Manager Kevin Yang Date of issue .................................... : Jul. 16, 2026 Testing Laboratory Name .............. : Shenzhen HTT Technology Co.,Ltd. Address ............................................ : 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao’an District, Shenzhen, Guangdong, China Applicant’s name ........................... : Acer Gadget Inc. Address ............................................ : 24F., No.112, Sec. 1, Xintai 5th Rd., Xizhi Dist., New Taipei city 221, Taiwan Test specification ........................... : Standard ........................................... : FCC Part 15.247 Shenzhen HTT Technology Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HTT Technology Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HTT Technology Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : True Wireless Earbuds Trade Mark ....................................... : Acer Manufacturer .................................. : Acer Gadget Inc. Model/Type reference ...................... : OHR659 Listed Models ................................... : N/A Modulation ....................................... : GFSK, Π/4DQPSK, 8DPSK Frequency ......................................... From 2402MHz to 2480MHz Ratings ............................................. : Headphone battery capacity:3.7V/25mAh (polymer battery) Charging bin battery capacity:3.7V/300mAh (polymer battery) Charging interface :USB Type-C Result ............................................... : PASS Report No.: HTT202607246F01 Page 2 of 45 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China T E S T R E P O R T Equipment under Test : True Wireless Earbuds Model /Type : OHR659 Listed Models : N/A Applicant : Acer Gadget Inc. Address : 24F., No.112, Sec. 1, Xintai 5th Rd., Xizhi Dist., New Taipei city 221, Taiwan Manufacturer : Acer Gadget Inc. Address : 24F., No.112, Sec. 1, Xintai 5th Rd., Xizhi Dist., New Taipei city 221, Taiwan Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: HTT202607246F01 Page 3 of 45 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Contents 1 TEST STANDARDS .......................................................................................................................................... 4 2 SUMMARY ........................................................................................................................................................ 5 2.1 General Remarks .................................................................................................................................... 5 2.2 Product Description ................................................................................................................................. 5 2.3 Equipment Under Test ............................................................................................................................ 5 2.4 Short description of the Equipment under Test (EUT) ............................................................................ 5 2.5 EUT configuration .................................................................................................................................... 6 2.6 EUT operation mode ............................................................................................................................... 6 2.7 Block Diagram of Test Setup .................................................................................................................. 6 2.8 Related Submittal(s) / Grant (s) .............................................................................................................. 6 2.9 Modifications ........................................................................................................................................... 6 3 TEST ENVIRONMENT ...................................................................................................................................... 7 3.1 Address of the test laboratory ................................................................................................................. 7 3.2 Test Facility ............................................................................................................................................. 7 3.3 Environmental conditions ........................................................................................................................ 7 3.4 Summary of measurement results ....................................................…

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2.4GHz1608ChipAntenna:RANT1608F245C04 _ Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT1608F245C04 (A)(B)(C)(D)(E)(F) ElectricalSpecification DimensionandTerminalConfiguration No.TerminalName 1Feeding/GNG 2GND/Feeding (A)ProductTypeChipAntenna (B)SizeCode 1.6x0.8mm( ± 0.1mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=04 WorkingFrequencyRange2400~2500MHz Bandwidth120MHz(Min.) PeakGain2.7dBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature( °C )-40~85 °C ResistancetoSolderingHeats 10sec.(@280 °C ) TerminationNi/Au(Leadless) Dimension(mm) L 1.60±0.10 W 0.80 ± 0.10 T 0.80 ± 0.10 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ 1 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss&Radiation ELECTRICALCHARACTERISTICSS11 Radiation ElectricalCharacteristics Freque ncy EfficPercenGain 2400-1.6472.27%2.38 2450-1.3375.34%2.7 2500-1.5972.98%2.59 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 16087”4K/Reel 4.0±0.5 4.0±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTψDP PaperType1608 1.90±0.203.50±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.10 1.50±0.10 4.0±0.1 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ ReliabilityTable TestItemP…

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