2AYJ7CHE-640Wireless Earphones

…………………………·· ………………………· ………………………………… …………………………· ……………………………… 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.

TRA COMPANY LTD Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2022/11/11 FCC ID: 2AYJ7CHE-640 SUBJECT: To Whom It May Concern: I, the undersigned, hereby states 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, and will apply the Supplier's Declaration of Conformity procedure to the class B computer peripheral portion of this composite device. I understand the following FCC requirements: 1. Devices subject to the SDoC procedure are required to be tested to show compliance with the FCC technical regulations by a recognized accredited testing laboratory. The testing laboratory must be accredited by a Commission approved accreditation body or designated under the terms of a government-to-government Mutual Recognition Agreement (MRA). A listing of those accredited testing laboratories that have been recognized by the Commission is published on the FCC Webpage: https://apps.fcc.gov/oetcf/eas/reports/TestFirmSearch.cfm (Select the "accredited" option to search for FCC recognized accredited test firms.) 2. Pt 2.1077 contains the list of information that must be included in the Supplier's Declaration of Conformity, which must be supplied with each product sold. The SDoC compliance info shall be included in the User’s Manual or as a separate sheet. The info must contain the name, address, and phone number of the responsible party, which must be located within the United States. According to 2.909(b), the responsible party is either the Manufacturer or if the product is imported the Importer. Regards, TRA COMPANY LTD ------------------------------- Wiktor Fronczak

Rev 11/20/07 TRA COMPANY LTD Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AYJ7CHE-640 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Block Diagram “Block Diagram.pdf” Schematics “Schematic.pdf” Operational Description “Operation Description.pdf” The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, ------------------------------- Wiktor Fronczak

G:\2021案件\已递交\待递交\10.31-A221017034-LCSA102722028E&030E&032E-张观宝-蓝牙耳机-TELEC&FCCID&CERED\Report\LCSA102722030E FCCID\Form\POA_Letter.docx TRA COMPANY LTD Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2022/11/11 SUBJECT: FCC Application for (FCC ID: 2AYJ7CHE-640) To Whom It May Concern: We, the undersigned, hereby authorize Gavin Liang at Shenzhen LCS Compliance Testing Laboratory Ltd. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Shenzhen LCS Compliance Testing Laboratory Ltd.on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, ------------------------------- Wiktor Fronczak

Page 1 of 4 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity External Photos of the EUT Fig. 1 Fig. 2 Page 2 of 4 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 3 Fig. 4 Page 3 of 4 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 5 Fig. 6 Page 4 of 4 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 7 Fig. 8

Page 1 of 1 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity LABEL AND LOCATION (Size: L: 1.0cm x W: 0.5cm) Label Location Wireless Earphones Model: CHE-640 FCC ID: 2AYJ7CHE-640

Page 1 of 6 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Internal Photos of the EUT Fig. 1 Fig. 2 Bluetooth Antenna Page 2 of 6 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 3 Fig. 4 Page 3 of 6 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 5 Fig. 6 Page 4 of 6 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 7 Fig. 8 Page 5 of 6 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 9 Fig. 10 Page 6 of 6 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 11

Page 1 of 4 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC RF Exposure Evaluation 1. Product Information Product name : Wireless Earphones Test Model : CHE-640 Power Supply : Input: DC 5V, 1A Headset: DC 3.7V By Rechargeable Battery(50mAh) Charging Case: DC 3.7V By Rechargeable Battery(400mAh) Hardware Version : V03 Software Version : V1.7 Frequency Range : 2402MHz ~ 2480MHz Channel Number : 79 channels for Bluetooth V5.3 (DSS) Channel Spacing : 1MHz for Bluetooth V5.3(DSS) Modulation Type : GFSK , π/4-DQPSK, 8-DPSK for Bluetooth V5.3 (DSS) Bluetooth Version : V5.3 Antenna Type : FPC Antenna Antenna Gain : -2.07dBi Exposure category : General population/uncontrolled environment EUT Type : Production Unit Device Type : Portable Device Page 2 of 4 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity 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.“ [(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 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 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 estimated SAR for each standalone antenna configuration, adjusted for maximum tune-up tolerance) / 1.6 W/kg] + [∑ of MPE ratios] is ≤ 1.0. b)The SAR to peak location separation ratios of all simultaneously transmitting antenna pairs operating in portable device exposure conditions are all ≤ 0.04, and the [∑ of MPE ratios] 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 Page 3 of 4 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity 4. Conducted Power Results <BT> Mode Channel Frequency (MHz) Peak Conducted Output Power (dBm) GFSK 0 2402 2.61 39 2441 2.52 78 2480 2.55 π/4-DQPSK 0 2402 2.66 39 2441 2.58 78 2480 2.57 8-DPSK 0 2402 2.67 39 2441 2.61 78 2480 2.59 5. Manufacturing Tolerance <BT> GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 2.0…

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＠司南微电子 Antenna Model：A891 Operation frequency: 2402-2480MHz Antenna Type: FPC Antenna Antenna Gain:0.08dBi(Max) Gain

Page 1 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Appendix A RF Test Data for BT (Conducted Measurement) Product Name: Wireless Earphones Test Model: CHE-640 Environmental Conditions Temperature: 23.8  C Relative Humidity: 52.1% ATM Pressure: 100.0 kPa Test Engineer: Ling Zhu Supervised by: Li Huan Page 2 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity A.1 -20dB Bandwidth Condition Mode Frequency (MHz) Antenna -20 dB Bandwidth (MHz) Limit -20 dB Bandwidth (MHz) Verdict NVNT 1-DH5 2402 Ant1 0.961 N/A Pass NVNT 1-DH5 2441 Ant1 0.957 N/A Pass NVNT 1-DH5 2480 Ant1 0.96 N/A Pass NVNT 2-DH5 2402 Ant1 1.275 N/A Pass NVNT 2-DH5 2441 Ant1 1.252 N/A Pass NVNT 2-DH5 2480 Ant1 1.267 N/A Pass NVNT 3-DH5 2402 Ant1 1.291 N/A Pass NVNT 3-DH5 2441 Ant1 1.321 N/A Pass NVNT 3-DH5 2480 Ant1 1.307 N/A Pass Page 3 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs -20dB Bandwidth NVNT 1-DH5 2402MHz Ant1 -20dB Bandwidth NVNT 1-DH5 2441MHz Ant1 Page 4 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -20dB Bandwidth NVNT 1-DH5 2480MHz Ant1 -20dB Bandwidth NVNT 2-DH5 2402MHz Ant1 Page 5 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -20dB Bandwidth NVNT 2-DH5 2441MHz Ant1 -20dB Bandwidth NVNT 2-DH5 2480MHz Ant1 Page 6 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -20dB Bandwidth NVNT 3-DH5 2402MHz Ant1 -20dB Bandwidth NVNT 3-DH5 2441MHz Ant1 Page 7 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -20dB Bandwidth NVNT 3-DH5 2480MHz Ant1 Page 8 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity A.2 Maximum Conducted Output Power Condition Mode Frequency (MHz) Antenna Total Power (dBm) Limit (dBm) Verdict NVNT 1-DH5 2402 Ant1 2.61 30 Pass NVNT 1-DH5 2441 Ant1 2.52 30 Pass NVNT 1-DH5 2480 Ant1 2.55 30 Pass NVNT 2-DH5 2402 Ant1 2.66 30 Pass NVNT 2-DH5 2441 Ant1 2.58 30 Pass NVNT 2-DH5 2480 Ant1 2.57 30 Pass NVNT 3-DH5 2402 Ant1 2.67 30 Pass NVNT 3-DH5 2441 Ant1 2.61 30 Pass NVNT 3-DH5 2480 Ant1 2.59 30 Pass Page 9 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs Power NVNT 1-DH5 2402MHz Ant1 Power NVNT 1-DH5 2441MHz Ant1 Page 10 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Power NVNT 1-DH5 2480MHz Ant1 Power NVNT 2-DH5 2402MHz Ant1 Page 11 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Power NVNT 2-DH5 2441MHz Ant1 Power NVNT 2-DH5 2480MHz Ant1 Page 12 of 54 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Power NVNT 3-DH5 2402MHz Ant1 Power NVNT 3-DH5 2441MHz Ant1 Page 13 of 54 FCC ID: 2AYJ7CHE-640 Rep…

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Page 1 of 37 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC TEST REPORT FOR TRA COMPANY LTD Wireless Earphones Test Model: CHE-640 Prepared for : TRA COMPANY LTD Address : Osaka-shi, Chuo-ku, Kitahama-higashi 6-6, Osaka, 540-0031, Japan 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 : October 31, 2022 Number of tested samples : 2 Sample No. : A102722030-1, A102722030-2 Serial number : Prototype Date of Test : October 31, 2022 ~ November 03, 2022 Date of Report : November 03, 2022 Page 2 of 37 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC TEST REPORT FCC CFR 47 PART 15 C (15.247) Report Reference No. ................. : LCSA102722030EA Date of Issue ................................... : November 03, 2022 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 .......................... : TRA COMPANY LTD Address ........................................... : Osaka-shi, Chuo-ku, Kitahama-higashi 6-6, Osaka, 540-0031, Japan 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. Test Item Description. .................. : Wireless Earphones Trade Mark ...................................... : cheero Test Model ...................................... : CHE-640 Ratings ............................................ : Input: DC 5V, 1A Headset: DC 3.7V By Rechargeable Battery(50mAh) Charging Case: DC 3.7V By Rechargeable Battery(400mAh) Result ........................................... : Positive Compiled by: Supervised by: Approved by: Vera Deng/ Administrator Cary Luo/ Technique principal Gavin Liang / Manager Page 3 of 37 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC -- TEST REPORT 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. : LCSA102722030EA November 03, 2022 Date of issue Test Model.............................. : CHE-640 EUT......................................... : Wireless Earphones Applicant............................... : TRA COMPANY LTD Address................................... : Osaka-shi, Chuo-ku, Kitahama-higashi 6-6, Osaka, 540-0031, Japan Telephone............................... : / Fax.......................................... : / Manufacturer......................... : TRA COMPANY LTD Address................................... : Osaka-shi, Chuo-ku, Kitahama-higashi 6-6, Osaka, 540-0031, Japan Telephone............................... : / Fax.......................................... : / Factory................................... : Fugle Products (HK) Co. Ltd. Address................................... : 8th Floor, Building D, ZhenHan Industrial Park,No.1 ZhenHan Road, jihua Street,LongGang District, Shenzhen, China 518112 Telephone............................... : / Fax.......................................... : / Page 4 of 37 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Revision History Report Version Issue Date Revision Content Revised By 000 November 03, 2022 Initial Issue --- Page 5 of 37 FCC ID: 2AYJ7CHE-640 Report No.: LCSA102722030EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity TABLE OF CONTENTS Description …

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Page 1 of 3 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Setup Photos of the EUT Test Setup Photo(s) of Radiated Emissions Measurement Fig. 1 Fig. 2 Page 2 of 3 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 2 Fig. 2 Page 3 of 3 FCC ID: 2AYJ7CHE-640 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Setup Photo of Line Conducted Emissions Measurement