2BTSJ-EPR-01Cell Phone Ringer

Earpanda Phone Ringer User Manual (EPR-01) ①Power ON/OFF: Hold the Power button for 3 seconds. After a prompt tone, the ringer will turn ON/OFF. Powered on by default for customer ease of use. ②Ringtone: Press the button to cycle & select through 5 tone options. Reset: Press & hold the button for 8 seconds, after a prompt tone, Bluetooth connections will be cleared and reset finished. With blue light flashing, It is in pairing mode for a new device connection. ③⑤Volume Control: Press the +/- buttons to adjust the sound level from 120dB (maximum) to mute. Flashing lights = volume at max/muted. ④Flashing Lights: Press the button to cycle through 4 brightness levels Off/Low/Medium/High. The lights will not flash during selecting to protect your eyes. Setup Tips: 1. Keep the ringer in a proper spot at home — make sure you can hear and see it easily at most times. 2. Always keep it plugged into a wall outlet and connected to your phone via Bluetooth to work properly. 3. For optimal range, please ensure the antenna is pointing in a vertical (upright) position. 4. Select and confirm your preferred ringtone, volume and flashing light brightness. 5. Use the original factory supplied adapter (5V/2A) or others with the same specification. Initial Pairing Instructions: 1) Ensure your Earpanda Ringer is powered on. 2) Enable Bluetooth on your phone. 3)Select and confirm "Earpanda Ringer" from your device list. 4) Connection is ok and the ringer blue light stops flashing. All done. Now enjoy the set and forget phone ringer. Pair One Phone with Two Ringers 1) Power on Ringer No.1 → follow initial pairing steps → Power off Ringer No.1 2) Power on Ringer No.2 → Repeat initial pairing steps for Ringer No.2 3) Place both ringers at opposite ends of your space. 4) Keep them plugged into power outlets and powered on, also your phone Bluetooth is on all the time. Both ringers remain active for uninterrupted alerts. Note: One ringer connecting with two phones at the same time is not supported. Trouble Shooting: 1) Connection Drops (Ringer Blue Light Flashing): Check Your Phone: • Phone powered off • Bluetooth disabled • Your phone is connected to another Bluetooth device • Out of Range: Up to in line 150ft/50m range 2) Can't Pair with a New Phone? Ringer Bluetooth Reset Required. Perform a reset to clear previous connections. See P1: ②Ringtone Reset Instruction. Thanks for Purchasing Earpanda Ringer EPR-01 ☑ 60 DAYS FREE TRIAL! ☑ 18 Months FREE REPLACEMENT. For refund, replacement, or any question, suggestion, feedbacks, etc., just be free to contact us at [email protected] Shenzhen Soundaids Technology co., ltd HK Soundaids co., ltd FCC Warnning: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection againstharmful interference in a residential installation. This equipment generates, uses and can radiateradio frequency energy and, if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined by turning the equipmentoff and on, the user is encouraged to try to correct the interference by one or more of thefollowing measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 0cm between the radiator and your body.

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202512533 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 4 Product Name: Cell Phone Ringer Model No.: EPR-01 EUT Constructional Details External Photo Report No.: HTT202512533 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 4 Report No.: HTT202512533 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 4 Report No.: HTT202512533 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 4 ------End------

Label and Location Size: L: 3.0cm*W: 2.0cm Label and Location FCC ID : 2BTSJ-EPR-01

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202512533 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 2 Product Name: Cell Phone Ringer Model No.: EPR-01 EUT Constructional Details Internal Photo ANTENNA Report No.: HTT202512533 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 2 ------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............................................. : HTT202512533F02 2BTSJ-EPR-01 Compiled by ( position+printed name+signature) . : File administrators Supervised by ( position+printed name+signature) . : Project Engineer Approved by ( position+printed name+signature) . : RF Manager Date of issue .................................... : Dec. 18, 2025 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 ............................ : Shenzhen Soundaids Technology CO., LIMITED Address ............................................ : B801, Meifeng Garden, Futian District, Shenzhen, China 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 ..................... : Cell Phone Ringer Manufacturer .................................... : Shenzhen Soundaids Technology CO., LIMITED Trade Mark ........................................ Earpanda Model/Type reference ...................... : EPR-01 Rating ............................................... : DC 5V Result ............................................... : PASS Report No.: HTT202512533F02 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 : Cell Phone Ringer Model /Type : EPR-01 Listed Models : EPR-02, EPR-03, EPR-X Applicant : Shenzhen Soundaids Technology CO., LIMITED Address : B801, Meifeng Garden, Futian District, Shenzhen, China Manufacturer : Shenzhen Soundaids Technology CO., LIMITED Address : B801, Meifeng Garden, Futian District, Shenzhen, China 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.: HTT202512533F02 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.: HTT202512533F02 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.: HTT202512533F02 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 : Dec. 11, 2025 Testing commenced on : Dec. 11, 2025 Testing concluded on : Dec. 18, 2025 2.2 Product Description Product description: Cell Phone Ringer Model/Type reference: EPR-01 Power supply: DC 5V Adapter Information (Auxiliary test provided by the lab): MODEL:JH-0502DC INPUT:100-240V-50/60Hz 0.3A OUTPUT:5V2000mA Testing sample ID： HTT202512533-1# (Engineer sample) HTT202512533-2# (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: External Antenna Antenna gain: 1.34 dBi 2.3 Special Accessories The following is the EUT test of the auxiliary equipment provided by the laboratory: Description Manufacturer Model Technical Parameters Certificate Provided by / / / / / / 2.4 Modifications No modifications were implemented to meet testing criteria. Report No.: HTT202512533F02 Page 6 of …

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ShenzhenKexinwirelessTechnologyCo.,LTD Address:BuildingH,HongYongliIndustrialZone,ShabeiField,LongxinCommunity,Baolong Street,LonggangDistrict,ShenzhenCity,GuangdongProvinc DATASHEET KX-JB-2.4G-SMA-J 2.4GUltrashortGluestickAntennaSMA-J 2025/12/18 刘景雄 李斌 谢东展李斌 王飞 李斌 ShenzhenKexinwirelessTechnologyCo.,LTD Address:BuildingH,HongYongliIndustrialZone,ShabeiField,LongxinCommunity,BaolongStreet, LonggangDistrict,ShenzhenCity,GuangdongProvinc ShenzhenKexinwirelessTechnologyCo.,LTD Address:BuildingH,HongYongliIndustrialZone,ShabeiField,LongxinCommunity,BaolongStreet, LonggangDistrict,ShenzhenCity,GuangdongProvinc 2.VSWR ShenzhenKexinwirelessTechnologyCo.,LTD Address:BuildingH,HongYongliIndustrialZone,ShabeiField,LongxinCommunity,BaolongStreet, LonggangDistrict,ShenzhenCity,GuangdongProvinc ElectricalSpecifications FrequencyRange(MHz)2400-2500 InputImpendence(Ω) 50 V.S.W.R ≤2 ± 1.0(Unmatchedequipment,for referenceonly) Gain(dBi) 2.0±0.5( Unmatchedequipment,for referenceonly ) PolarizationType Vertical Maximumpower(W) 10W VerticallobeAngle(E) 45~60° HorizontallobeAngle(H) 360° MechanicalSpecifications ConnectTypeSMA-J SizeΦ10.5*50MM OperatingTemp-25~+75 ̊C ShenzhenKexinwirelessTechnologyCo.,LTD Address:BuildingH,HongYongliIndustrialZone,ShabeiField,LongxinCommunity,BaolongStreet, LonggangDistrict,ShenzhenCity,GuangdongProvinc Frequency(MHz)Efficiency(%)PeakGAIN(dBi) 2400 56.751.0 2450 57.151.34 2500 58.411.29

1 Appendix RF Test Data for BT Company: : Shenzhen Soundaids Technology CO., LIMITED EUT : Cell Phone Ringer FCC ID: : 2BTSJ-EPR-01 Model Number : EPR-01 Report No. : HTT202512533F01 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 2.884 3.750 76.91 1.14 0.03 2441 DH5 2.883 3.750 76.88 1.14 0.03 2480 DH5 2.884 3.750 76.91 1.14 0.03 Pi/4DQPSK SISO 2402 2DH5 2.890 3.750 77.07 1.13 0.01 2441 2DH5 2.889 3.749 77.06 1.13 0.01 2480 2DH5 2.889 3.749 77.06 1.13 0.01 8DPSK SISO 2402 3DH5 2.891 3.751 77.07 1.13 0.03 2441 3DH5 2.891 3.750 77.09 1.13 0.01 2480 3DH5 2.891 3.751 77.07 1.13 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 0.869 / Pass 2441 DH5 1 0.875 / Pass 2480 DH5 1 0.877 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.168 / Pass 2441 2DH5 1 1.182 / Pass 2480 2DH5 1 1.178 / Pass 8DPSK SISO 2402 3DH5 1 1.168 / Pass 2441 3DH5 1 1.180 / Pass 2480 3DH5 1 1.185 / 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 0.960 / Pass 2441 DH5 1 0.999 / Pass 2480 DH5 1 0.979 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.249 / Pass 2441 2DH5 1 1.275 / Pass 2480 2DH5 1 1.275 / Pass 8DPSK SISO 2402 3DH5 1 1.234 / Pass 2441 3DH5 1 1.286 / Pass 2480 3DH5 1 1.282 / 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 -3.81 <=30 Pass 2441 DH5 -4.21 <=30 Pass 2480 DH5 -4.30 <=30 Pass Pi/4DQPSK SISO 2402 2DH5 -3.83 <=20.97 Pass 2441 2DH5 -4.24 <=20.97 Pass 2480 2DH5 -4.33 <=20.97 Pass 8DPSK SISO 2402 3DH5 -3.83 <=20.97 Pass 2441 3DH5 -4.24 <=20.97 Pass 2480 3DH5 -4.33 <=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 1.000 0.999 >=0.999 Pass Pi/4DQPSK SISO HOPP 2DH5 0.994 1.275 >=0.85 Pass 8DPSK SISO HOPP 3DH5 1.013 1.286 >=0.857 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 0.384 31.600 79 30.336 <=400 Pass DH3 1.640 31.600 64 104.960 <=400 Pass DH5 2.888 31.600 63 181.944 <=400 Pass Pi/4DQPSK SISO HOPP 2DH1 0.390 31.600 83 32.370 <=400 Pass 2DH3 1.642 31.600 80 131.360 <=400 Warning 2DH5 2.892 31.600 50 144.600 <=400 Pass 8DPSK SISO HOPP 3DH1 0.394 31.600 84 33.096 <=400 Pass 3DH3 1.644 31.600 66 108.504 <=400 Pass 3DH5 2.658 31.600 47 124.926 <=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 -4.13 2441 DH5 1 -4.37 2480 DH5 1 -4.58 HOPP DH5 1 -4.11 -4.11 Pi/4DQPSK SISO 2402 2DH5 1 -4.20 2441 2DH5 1 -4.36 2480 2DH5 1 -4.50 HOPP 2DH5 1 -4.13 -4.13 8DPSK SISO 2402 3DH5 1 -4.00 2441 3DH5 1 -4.53 2480 3DH5 1 -4.45 HOPP 3DH5 1 -3.89 -3.89 Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. 7.1.2 CSE Mode TX Type Frequency (MHz) Packet Type ANT Level of Reference (dBm) Limit (dBm) Verdict GFSK SISO 2402 DH5 1 -4.13 -24.13 Pass 2441 DH5 1 -4.37 -24.37 Pass 2480 DH5 1 -4.58 -24.58 Pass HOPP DH5 1 -4.11 -24.11 Pass -4.11 -24.11 Pass Pi/4DQPSK SISO 2402 2DH5 1 -4.20 -24.20 Pass 2441 2DH5 1 -4.36 -24.36 Pass 2480 2DH5 1 -4.50 -24.50 Pass HOPP 2DH5 1 -4.13 -24.13 Pass -4.13 -24.13 Pass 8DPSK SISO 2402 3DH5 1 -4.00 -24.00 Pass 2441 3DH5 1 -4.53 -24.53 Pass 2480 3DH5 1 -4.…

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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. ........................................... : HTT202512533F01 2BTSJ-EPR-01 Compiled by ( position+printed name+signature) . : File administrators Supervised by ( position+printed name+signature) . : Project Engineer Approved by ( position+printed name+signature) . : RF Manager Date of issue .................................... : Dec. 18, 2025 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 ........................... : Shenzhen Soundaids Technology CO., LIMITED Address ............................................ : B801, Meifeng Garden, Futian District, Shenzhen, China 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 ..................... : Cell Phone Ringer Trade Mark ....................................... : Earpanda Manufacturer .................................. : Shenzhen Soundaids Technology CO., LIMITED Model/Type reference ...................... : EPR-01 Listed Models ................................... : EPR-02, EPR-03, EPR-X Modulation ....................................... : GFSK, Π/4DQPSK, 8DPSK Frequency ......................................... From 2402MHz to 2480MHz Ratings ............................................. : DC 5V Result ............................................... : PASS Report No.: HTT202512533F01 Page 2 of 30 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 : Cell Phone Ringer Model /Type : EPR-01 Listed Models : EPR-02, EPR-03, EPR-X Applicant : Shenzhen Soundaids Technology CO., LIMITED Address : B801, Meifeng Garden, Futian District, Shenzhen, China Manufacturer : Shenzhen Soundaids Technology CO., LIMITED Address : B801, Meifeng Garden, Futian District, Shenzhen, China 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.: HTT202512533F01 Page 3 of 30 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 .......................................................................................................... 8 3.5 Statement of the measurement uncertainty .....…

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Shenzhen HTT Technology Co., Ltd. Report No.: HTT202512533 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 2 Product Name: Cell Phone Ringer Model No.: EPR-01 Test Setup Photo Radiated Emission Report No.: HTT202512533 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 2 Conducted Emission RF Test ------End------