2ADK3XO-9902Wireless headphone

FCC ID 2ADK3XO-9902 1 x Bluetooth Headphones 1 x USB to Micro-USB Charging Cable 1 x Instruction Manual 1 x 3.5mm Aux Cable Playing Time: 4 hours (at max volume) Charging Time: 2-3 hours Pairing Name: “Oppo Bluetooth Headphones” Battery: 3.7V/200mAh Li Polymer Charging the Earbuds: Connect the provided USB cable to a regulated USB adapter. Connect the Micro-USB end of the cable to the charging port of the headphones(5). LED indicator will turn RED when charging, once fully charged LED will turn OFF. Bluetooth ® Connection: Press and hold Multifunction Button(2) to turn ON the headphones, headphones will and BLUE when in pairing mode. Turn on the Bluetooth function on mobile device, Select “Oppo Bluetooth Headphones” pairing name. Headphones will prompt and LED will Headphones will automatically turn OFF after 5 minutes if not connected to bluetooth. Call Controls: When receiving a phone call, press the multifunction button to answer and press again to end call. Long press the multifunction button to reject a phone call. Music Controls: Single press Multifunction button to Play/ Pause audio. Short press Vol+/Next Track(3) to increase volume. Long press Vol+/Next Track(3) to skip to the next track. Short press Vol-/Previous Track(1) to decrease volume. Long press Vol-/Previous Track(1) to skip WARNING-When using this product, basic precautions should always be followed: Read all the instructions before use. Never store or use this product in temperatures below 32°F(0°C) or above 115°F(45°C). The unit’s full performance is achieved only after 2 or 3 completed charge and discharge cycles. Do not expose the device to moisture. Do not use the device in excess of its output rating. Overload outputs above Do not use the device if damaged or explosion or risk of injury. Do not disassemble the device. For professional. Incorrect reassembly may excessive temperature. To reduce the risk of injury, close supervision is required when the product is used near children. use only identical replacement parts to ensure product safety 1. • • 2. • • • • 3. • • Double press Vol+/Next Track(3) to activate voice Assistant/Siri. • 4. • • • • • • 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 1. 2. 3. 4. 5. 6. 7. • • • • Vol -/ Previous Track Play/Pause/Answer/Reject Vol +/ Next Track LED Indicator Micro USB Input 3.5mm Aux Input Microphone What’s included: Functions: Instructions: SAFETY PRECAUTIONS: to previous track. Aux Connection: Connect the provided 3.5mm Aux cable to the 3.5mm Aux Input of the headphones and mobile device to play music directly. 5. • Warning: 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 inte rference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: 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 against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interferenceto radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following 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. Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2021-5-20> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2ADK3XO-9902 XO-9902 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： Sam Shen/Sales Company: XING DA INTERNATIONAL ELECTRONICS LIMITED Address: #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, China Phone: (86) 769-83454636 Fax: (86) 769-83345348 E-Mail: [email protected]

XING DA INTERNATIONAL ELECTRONICS LIMITED #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2021-5-20 To whom it may concern: We, XING DA INTERNATIONAL ELECTRONICS LIMITED the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2ADK3XO-9902 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： Sam Shen/Sales Company: XING DA INTERNATIONAL ELECTRONICS LIMITED Address: #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, China Phone: (86) 769-83454636 Fax: (86) 769-83345348 E-Mail: [email protected]

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 1 of 3 EXTERIOR PHOTOGRAPHS Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 2 of 3 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 3 of 3 Fig.5 Fig.6

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 1 Label and Location Size: L2.0cm*W0.5cm Label Location Wireless headphone Model No.: XO-9902 FCC ID: 2ADK3XO-9902

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 1. INTERIOR PHOTOGRAPHS Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Fig.5 Fig.6 BT Antenna SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Fig.7

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO‐9902 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 3 FCC RF Exposure Evaluation 1. Product Information FCC ID: 2ADK3XO‐9902 Product name Wireless headphone Test Model XO‐9902 Power supply Input: DC 5V DC 3.7V by Rechargeable Li‐ion Battery, 200mAh, 0.74Wh Modulation Type GFSK, π/4‐DQPSK for Bluetooth V5.1 (DSS) Antenna Type PCB Antenna Antenna Gain ‐0.58dBi(maximum) Hardware version / Software version / Bluetooth Operation frequency 2402MHz‐2480MHz Bluetooth Version V5.1 Exposure category General population/uncontrolled environment EUT Type Production Unit Device Type Portable Device 2. Evaluation Method According to KDB447498 D01 General RF Exposure Guidance v06Section 4.3.1 Standalone SAR test exclusion considerations: “Unless specifically required by the published RF exposure KDB procedures, standalone 1‐g head or body and 10‐g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source‐based time‐averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune‐up tolerance, and the minimum test separation distance required for the exposure conditions. The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two‐way radios, handsets, laptops & tablets etc.“ [(max. power of channel, including tune‐up tolerance, mW)/ (min. test separaƟon distance, mm)] · [√f (GHz)] ≤ 3.0 for 1‐g SAR and ≤ 7.5 for 10‐g extremity SAR, where: • f (GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to f) in section 4.1 is applied to determine SAR test exclusion. When one of the following test exclusion conditions is satisfied for all combinations of simultaneous transmission configurations, further equipment approval is not required to incorporate transmitter SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO‐9902 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 3 modules in host devices that operate in the mixed mobile and portable host platform exposure conditions. The grantee is responsible for documenting this according to Class I permissive change requirements. Antennas that qualify for standalone SAR test exclusion must apply the estimated standalone SAR to determine simultaneous transmission test exclusion. a) The [∑ of (the highest measured or esƟmated SAR for each standalone antenna configuraƟon, adjusted for maximum tune‐up tolerance) / 1.6 W/kg] + [∑ of MPE raƟos] is ≤ 1.0. b) The SAR to peak location separation ratios of all simultaneously transmitting antenna pairs operaƟng in portable device exposure condiƟons are all ≤ 0.04, and the [∑ of MPE raƟos] is ≤ 1.0. 3. Refer Evaluation Method 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 publication 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies. FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits. FCC CFR 47 part2 2.1093: Radiofrequency radiation exposure evaluation: portable devices 4. Conducted Power Results [BT Classics] Mode Channel Frequency (MHz)Peak Conducted Output Power (dBm) GFSK 0 2402 1.983 39 2441 1.118 78 2480 ‐0.110 π/4DQPSK 0 2402 4.298 39 2441 3.445 78 2480 2.185 5. Manufacturing Tolerance [BT Classics] GFSK (Peak) Channel Channel 0Channel 39Channel 78 Target (dBm) 1.0 1.0 0 Tolerance ±(dB) 1.0 1.0 1.0 π/4DQPSK (Peak) Channel Channel 0Channel 39Channel 78 Target (dBm) 4.0 3.0 2.0 Tolerance ±(dB) 1.0 1.0 1.0 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO‐9902 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 3 6. Evaluation Results 6.1 Standalone Evaluation Band/Mode f (GHz) Antenna Distance (mm) RF output power SAR Test Exclusion Threshold SAR Test Exclusion dBm mW GFSK 2.402 5 2.0 1.5849 0.4913 < 3.0 Yes π/4DQPSK 2.402 5 5.0 3.1623 0.9802 < 3.0 Yes Remark: 1. RF output power including tune up tolerance; 2. When the minimum test separation distance is < 5 mm, a distance of 5 mm accord…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 1 of 34 Appendix A RF Test Data for BT V5.1(DSS) (Conducted Measurement) Product Name: Wireless headphone Trade Mark: N/A Test Model: XO-9902 Environmental Conditions Temperature: 24.6  C Relative Humidity: 54.1% ATM Pressure: 100.0 kPa Test Engineer: Jay Li Supervised by: Li Huan A.1 Maxmum Conducted Peak Output Power Mode Channel. Maximum Peak Output Power [dBm]Limit [dBm] Verdict GFSK LCH 1.983 21 PASS MCH 1.118 21 PASS HCH -0.110 21 PASS π/4DQPSK LCH 4.298 21 PASS MCH 3.445 21 PASS HCH 2.185 21 PASS SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 2 of 34 Test Graphs GFSK/LCH GFSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 3 of 34 GFSK/HCH π/4DQPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 4 of 34 π/4DQPSK/MCH π/4DQPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 5 of 34 A.2 20dB Bandwidth Mode Channel. 20dB Bandwidth [MHz] Limit [MHz] Verdict GFSK LCH 0.9524 Not Specified PASS MCH 0.9505 Not Specified PASS HCH 0.9521 Not Specified PASS π/4DQPSK LCH 1.334 Not Specified PASS MCH 1.333 Not Specified PASS HCH 1.331 Not Specified PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 6 of 34 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 7 of 34 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 8 of 34 π/4DQPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 9 of 34 A.3 Carrier Frequency Separation Mode Channel. Carrier Frequency Separation [MHz] Limit [MHz] Verdict GFSK LCH 0.946 0.635 PASS MCH 1.058 0.635 PASS HCH 1.088 0.635 PASS π/4DQPSK LCH 1.140 0.889 PASS MCH 1.276 0.889 PASS HCH 0.920 0.889 PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 10 of 34 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 11 of 34 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 12 of 34 π/4DQPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 13 of 34 A.4 Hopping Channel Number Mode Channel. Number of Hopping Channel [N]Limit [N] Verdict GFSK Hop 79 >=15 PASS π/4DQPSK Hop 79 >=15 PASS Test Graphs GFSK/Hop π/4DQPSK/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 14 of 34 A.5 Dwell Time Mode Packet Channel Burst Width [ms/hop/ch] Total Hops[hop*ch] Dwell Time[s] Limit [s]Verdict GFSK DH5 LCH 2.9 106.7 0.309 0.4 PASS DH5 MCH 2.9 106.7 0.309 0.4 PASS DH5 HCH 2.9 106.7 0.309 0.4 PASS π/4DQPSK 2DH5 LCH 2.9 106.7 0.309 0.4 PASS 2DH5 MCH 2.9 106.7 0.309 0.4 PASS 2DH5 HCH 2.9 106.7 0.309 0.4 PASS Test Graphs GFSK_DH5/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 15 of 34 GFSK_DH5/MCH GFSK_DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 16 of 34 π/4DQPSK _2DH5/LCH π/4DQPSK _2DH5/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 17 of 34 π/4DQPSK _2DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 18 of 34 A.6 RF Conducted Spurious Emissions Mode Channel Pref [dBm] Max. Level [dBm] Limit [dBm] Verdict GFSK LCH 1.528 -37.332 -18.472 PASS MCH 0.7 -37.366 -19.300 PASS HCH -0.378 -38.107 -20.378 PASS π/4DQPSK LCH 1.551 -37.499 -18.449 PASS MCH 0.682 -38.079 -19.318 PASS HCH -0.547 -37.794 -20.547 PASS GFSK_LCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 19 of 34 Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 20 of 34 GFSK_MCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 21 of 34 GFSK_HCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 22 of 34 π/4DQPSK_LCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 23 of 34 π/4DQPSK_MCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 24 of 34 π/4DQPSK_HCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 25 of 34 A.7 Band-edge for RF Conducted Emissions Mode Channel Carrier Frequency [MHz] Carrier Power [dBm] Frequency Hopping Max Spurious Level [dBm] Limit [dBm] Verdict GFSK LCH 2402 1.658 Off -48.084 -18.34 PASS 1.564 On -48.178-18.44 PASS HCH 2480 -0.361 Off -49.380 -20.36 PASS 0.255 On -47.952-19.75 PASS π/4DQPSK LCH 2402 1.285 Off -48.482 -18.72 PASS 1.340 On -48.452-18.66 PASS HCH 2480 -0.514 Off -49.005 -20.51 PASS -0.075 On -47.743-20.08 PASS SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 26 of 34 Test Graphs GFSK/LCH/No Hop GFSK/LCH/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 27 of 34 GFSK/HCH/No Hop GFSK/HCH/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA Page 28 of 34 π/4DQPSK/LCH/No Hop π/4DQPSK/LCH/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY L…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 36 FCC TEST REPORT For XING DA INTERNATIONAL ELECTRONICS LIMITED Wireless headphone Test Model: XO-9902 Prepared for : XING DA INTERNATIONAL ELECTRONICS LIMITED Address : #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, China Prepared by : Shenzhen LCS Compliance Testing Laboratory Ltd. Address : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel : (+86)755-82591330 Fax : (+86)755-82591332 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : May 08, 2021 Number of tested samples : 2 Serial number : 210429185A-1(Engineer sample), 210429185A-2(Normal sample) Date of Test : May 08, 2021 ~ May 12, 2021 Date of Report : May 12, 2021 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 36 FCC TEST REPORT FCC CFR 47 PART 15 C (15.247) Report Reference No. ................. : LCS210429185AEA Date of Issue .................................. : May 12, 2021 Testing Laboratory Name ............ : Shenzhen LCS Compliance Testing Laboratory Ltd. Address .......................................... : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Testing Location/ Procedure........... : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s Name ......................... : XING DA INTERNATIONAL ELECTRONICS LIMITED Address .......................................... : #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, China Test Specification Standard ......................................... : FCC CFR 47 PART 15 C (15.247) Test Report Form No. ................... : LCSEMC-1.0 TRF Originator ................................ : Shenzhen LCS Compliance Testing Laboratory Ltd. Master TRF .................................... : Dated 2011-03 Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Shenzhen LCS Compliance Testing Laboratory 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. EUT Description. .......................... : Wireless headphone Trade Mark ..................................... : N/A Test Model...................................... : XO-9902 Ratings ........................................... : Input: DC 5V DC 3.7V b y Rechargeable Li-ion Battery, 200mAh, 0.74Wh Result ........................................... : Positive Compiled by: Supervised by: Approved by: Ray Yang/ Administrators Jin Wang/ Technique principal Gavin Liang/ Manager SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 36 FCC -- TEST REPORT Test Model............................... : XO-9902 EUT......................................... : Wireless headphone Applicant............................... : XING DA INTERNATIONAL ELECTRONICS LIMITED Address.................................. : #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, China Telephone............................... : Fax.......................................... : Manufacturer........................ : XING DA INTERNATIONAL ELECTRONICS LIMITED Address................................... : #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, China Telephone............................... : Fax.......................................... : Factory................................... : XING DA INTERNATIONAL ELECTRONICS LIMITED Address................................... : #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan, Guang Dong, China Telephone............................... : Fax.......................................... : Test Result Positive 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. Test Report No. : LCS210429185AEA May 12, 2021 Date of issue SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 36 Revision History Revision Issue Date Revisions Revised By 000 May 12, 2021 Initial Issue Gavin Liang SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 Report No.: LCS210429185AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 5 of 36 TABLE OF CONTENTS Description .................................................................................................................................. Page 1. GENERAL INFORMATION ................................................................................................................................... 6 1.1. DESCRIPTION OF DEVICE (EUT) ........................................................................................................................ 6 1.2. HOST SYSTEM CONFIGURATION LIST AND DETAILS ..…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 _______________________________________________________________________________________________ 1. TEST SETUP PHOTOGRAPHS 1.1. Photo of Radiated Emissions Measurement Fig. 1 Fig. 2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADK3XO-9902 _______________________________________________________________________________________________ 1.2. Photo of Conducted Emissions Measurement Fig. 3