2ADK3XO-10028Wireless Earbuds

FCCID：2ADK3XO-10028 Loo Charging: 1.IncludedwithyourdeviceisaMicroUSBcable.InserttheMicroUSBendintotheMicroUSBPortonthebottomofthe chargingcase. 2.Insertthechargingcable’sUSBplugintotheUSBportofacomputerorsuitableUSBchargingadapter. 3.Casechargetheearbuds:SolidRedLEDonearbudswhencharging,LEDsonbothearbudsturnoffwhenearbudsarefully charged. 4.Chargethecase:RedLEDflashwhenchargingandLEDturnoffwhencasefullycharged. Bluetoothpairing: Removeearbudsfromcase,promptavoice"Poweron",thenabeeptoindicatebothearbudssynctoeachother,nowmain earbudLEDflashRed&Blue,secondaryearbudflashBlueslowly. AfterconnectBluetooth,promptavoice"connected",nowbothearbudsLEDsflashblueslowly. Touchandholdthebutton1secondtoenter"TransparencyMode',touchandholdthebutton1secondagaintoenter"ANC ON",touchandholdthebutton1secondagaintoenter"ANCOFF", disconnectBluetoothwillpromptavoice"Disconnected".Longpressearbudsbuttonabout5secondstopoweroffearbudsand hearavoiceprompt"Poweroff". IfdisconnectBluetoothafter5mins,theearbudswillautoshutoff. Earphonescontrol: 1.AsingletouchoftheRightorLeftbuttontoPlay/Pause/Answer/Refuse/EndaCall. 2.Double-touchtherightmultifunctionbuttontogotothenexttrackanddouble-touchtheleftbuttontogoto theprevioustrack. Tripletouchearbudbutton,youwillhearabeepingsoundtoindicatethatyourvoiceAssistant/Siriis“activated”andawaiting yourcommands. 3.Putoneearbudintocase,theotherwillstayon.Putbothearbudsintocase,earbudswillturnoff. Note: 1.Keeptheproductdry;donotplacetheproductindampplaces. 2.KeepoutofdirectsunlightandhightemperaturesHightemperaturesmayresultindamage. 3.Keepoutofcoldtemperatures,thiswillhelpavoidinternaldamage. 4.Donotdisassembletheproduct. 5.Avoiddroppingtheproduct. 6.Donotcontinuetochargetheproductover10hours. 7.WhenchargingusetheMicroUSBchargingcordthatcamewiththeproduct. SPECIFICATIONS: BT version : 5.1 Charging time :1.5 hour(earabuds),2.5 hours (charging box) Battery capacity Earbuds : 40 mAh Battery capacity Charging box 400 mAh Input of the charging box:5V/350mA FCC Statement 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 interference to 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. 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. RF Exposure Information 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 <2020-11-30> TO WHOM IT MAY CONCERN 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 : 2ADK3XO-10028 Model name XO-10028 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: 0769-83454636 Fax: 0769-83345348 E-Mail: [email protected]

XING DA INTERNATIONAL ELECTRONICS LIMITED Add: #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 2020/11/30 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-10028 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: 0769-83454636 Fax: 0769-83345348 E-Mail: [email protected]

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 5 External Photos of the EUT Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 5 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 5 Fig.5 Fig.6 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 5 Fig.7 Fig.8 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 5 of 5 Fig.9

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. 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*W1.0cm Material: Tagboard Glue: adhesive sticker Font color: White Label color: Black Label Location FCC ID: 2ADK3XO-10028

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 3 Internal Photos of the EUT Fig.1 Fig.2 BT ANT SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 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-10028 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

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD FCC ID:2ADK3XO-10028 ________________________________________________________________________ ___ 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-10028 Product name Wireless Earbuds Model number XO-10028 Additional Model No. / Model declaration / Power supply Headset: Input: DC 5V DC 3.7V by Li-ion Battery(40mAh) Charging Case: Input: DC 5V, 350mA DC 3.7V By Li-ion Battery(400mAh) Operation frequency Bluetooth: 2402MHz-2480MHz Modulation Type GFSK, π/4-DQPSK for Bluetooth V5.1 (DSS) Channel Number 79 Channels for Bluetooth V5.1(DSS) Antenna Type Internal Antenna Antenna Gain -0.58dBi(Max.) Hardware version 2.1 Software version 1.0 Exposure category General population/uncontrolled environment EUT Type Production Unit Device Type Protable Device 2. Evaluation method and Limit According to KDB447498 D01 General RF Exposure Guidance v06 Section 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.22 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.23 “ [(max. power of channel, including tune-up tolerance, mW)/ (min. test separation 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 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD FCC ID:2ADK3XO-10028 ________________________________________________________________________ ___ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 3 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. 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 Mode Channel Frequency(MHz) Average Conducted Output Power (dBm) GFSK 0 2402 -2.107 39 2441 -2.452 78 2480 -3.644 π/4DQPSK 0 2402 -1.440 39 2441 -1.710 78 2480 -2.852 5. Manufacturing tolerance GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -2 -2 -3 Tolerance ±(dB) 1.0 1.0 1.0 π/4DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -1 -1 -2 Tolerance ±(dB) 1.0 1.0 1.0 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD FCC ID:2ADK3XO-10028 ________________________________________________________________________ ___ 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 Band/Mode f (GHz) Antenna Distance (mm) RF output power SAR Test Exclusion Threshold SAR Test Exclusion dBm mW GFSK 2.402 5 -1 0.7943 0.2462< 3.0 Yes π/4DQPSK 2.402 5 0 1.0000 0.3100 < 3.0 Yes Remark: 1. Output power including tune up tolerance; 2. 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. 7. Conclusion The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06. .......................THE END OF REPORT.........................

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 1 of 34 Appendix A RF Test Data for BT V5.1(BDR/EDR) (Conducted Measurement) Product Name: Wireless Earbuds Trade Mark: N/A Test Model: XO-10028 Environmental Conditions Temperature: 23.3 C Relative Humidity: 53.7% ATM Pressure: 100.0 kPa Test Engineer: Dancy Chen Supervised by: Li Huan A.1 Maxmum Conducted Peak Output Power Mode Channel. Maximum Peak Output Power [dBm] Limit [dBm] Verdict GFSK LCH -2.107 21 PASS MCH -2.452 21 PASS HCH -3.644 21 PASS π/4DQPSK LCH -1.440 21 PASS MCH -1.710 21 PASS HCH -2.852 21 PASS SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 2 of 34 Test Graphs GFSK/LCH GFSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 3 of 34 GFSK/HCH π/4DQPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 4 of 34 π/4DQPSK/MCH π/4DQPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 5 of 34 A.2 20dB Bandwidth Mode Channel. 20dB Bandwidth [MHz] Limit [MHz] Verdict GFSK LCH 0.8023 Not Specified PASS MCH 0.8026 Not Specified PASS HCH 0.8057 Not Specified PASS π/4DQPSK LCH 1.245 Not Specified PASS MCH 1.241 Not Specified PASS HCH 1.247 Not Specified PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 6 of 34 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 7 of 34 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 8 of 34 π/4DQPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 9 of 34 A.3 Carrier Frequency Separation Mode Channel. Carrier Frequency Separation [MHz] Limit [MHz] Verdict GFSK LCH 0.914 0.537 PASS MCH 0.990 0.537 PASS HCH 0.988 0.537 PASS π/4DQPSK LCH 1.088 0.831 PASS MCH 1.146 0.831 PASS HCH 1.184 0.831 PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 10 of 34 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 11 of 34 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 12 of 34 π/4DQPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA 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-10028 Report No.: LCS201111368AEA 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 2.92 106.7 0.312 0.4 PASS DH5 MCH 2.92 106.7 0.312 0.4 PASS DH5 HCH 2.92 106.7 0.312 0.4 PASS π/4DQPSK 2DH5 LCH 2.92 106.7 0.313 0.4 PASS 2DH5 MCH 2.92 106.7 0.313 0.4 PASS 2DH5 HCH 2.92 106.7 0.313 0.4 PASS Test Graphs GFSK_DH5/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 15 of 34 GFSK_DH5/MCH GFSK_DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 16 of 34 π/4DQPSK _2DH5/LCH π/4DQPSK _2DH5/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 17 of 34 π/4DQPSK _2DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 18 of 34 A.6 RF Conducted Spurious Emissions Mode Channel Pref [dBm] Max. Level [dBm] Limit [dBm] Verdict GFSK LCH -2.332 -38.165 -22.332 PASS MCH -2.729 -38.612 -22.729 PASS HCH -3.971 -37.931 -23.971 PASS π/4DQPSK LCH -2.528 -38.627 -22.528 PASS MCH -2.802 -37.781 -22.802 PASS HCH -3.967 -37.297 -23.967 PASS GFSK_LCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 19 of 34 Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 20 of 34 GFSK_MCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 21 of 34 GFSK_HCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 22 of 34 π/4DQPSK_LCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 23 of 34 π/4DQPSK_MCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 24 of 34 π/4DQPSK_HCH_Graphs Pref Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA 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 -2.285 Off -48.775 -22.29 PASS -2.700 On -49.263 -22.7 PASS HCH 2480 -3.905 Off -45.596 -23.91 PASS -3.574 On -47.686 -23.57 PASS π/4DQPSK LCH 2402 -2.513 Off -48.783 -22.51 PASS -2.560 On -44.397 -22.56 PASS HCH 2480 -3.955 Off -47.032 -23.96 PASS -3.372 On -48.209 -23.37 PASS SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 26 of 34 Test Graphs GFSK/LCH/No Hop GFSK/LCH/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 27 of 34 GFSK/HCH/No Hop GFSK/HCH/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA Page 28 of 34 π/4DQPSK/LCH/No Hop π/4DQPSK/LCH/Hop SHENZHEN L…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 37 FCC TEST REPORT For XING DA INTERNATIONAL ELECTRONICS LIMITED Wireless Earbuds Test Model:XO-10028 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 Shajing Street, Baoan District, Shenzhen, China Tel : (+86)755-82591330 Fax : (+86)755-82591332 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : November 16, 2020 Number of tested samples : 2 Sample number : 201111368A-1, 201111368A-2 Serial number : Prototype Date of Test : November 16, 2020~November 24, 2020 Date of Report : November 26, 2020 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 37 FCC TEST REPORT FCC CFR 47 PART 15 C(15.247) Report Reference No. ................. : LCS201111368AEA Date of Issue .................................. : November 26, 2020 Testing Laboratory Name ............ : Shenzhen LCS Compliance Testing Laboratory Ltd. Address .......................................... : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Shajing Street, Baoan District, Shenzhen, 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 Earbuds Trade Mark ..................................... : N/A Test Model ...................................... : XO-10028 Ratings ........................................... : Headset: Input: DC 5V DC 3.7V by Li-ion Battery(40mAh) Charging Case: Input: DC 5V, 350mA DC 3.7V By Li-ion Battery(400mAh) Result ............................................ : Positive Compiled by: Supervised by: Approved by: Scent Hu/ File administrators Jin Wang/ Technique principal Gavin Liang/ Manager SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 37 FCC -- TEST REPORT Test Model............................... : XO-10028 EUT......................................... : Wireless Earbuds 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................................... : / Address................................... : / 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. : LCS201111368AEA November 26, 2020 Date of issue SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 37 Revision History Revision Issue Date Revisions Revised By 000 November 26, 2020 Initial Issue Gavin Liang SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 Report No.: LCS201111368AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 5 of 37 TABLE OF CONTENTS 1. GENERAL INFORMATION .................................................................................................................................................. 6 1.1. DESCRIPTION OF DEVICE (EUT) ....................................................................................................................................... 6 1.2. HOST SYSTEM CONFIGURATION LIST AND DETAILS ......................................................................................................... 6 1.3. EXTERNAL I/O CABLE ......................................................................…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 _______________________________________________________________________________________________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 2 Test Setup Photos of the EUT Test Setup Photo(s) of Radiated Emissions Measurement Fig. 1 Fig. 2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:2ADK3XO-10028 _______________________________________________________________________________________________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 2 Test Setup Photo(s) of Conducted Emissions Measurement Fig. 3