2A6ET-RT6135Open TWS Headphones

ShenZhen Ankbit Electronics Limited The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 6/5/2023 U.S. Agent Designation ShenZhen Ankbit Electronics Limited acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2A6ET-RT6135): Contact Name: Tim Payne C ompany of U.S. agent: FCC US Agent, LLC Physical U.S. address of agent: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA FRN of U.S. agent: 0033402884 Email address of U.S. agent: [email protected] FCC US Agent, LLC acknowledges their obligation to accept service of process on behalf of ShenZhen Ankbit Electronics Limited. ShenZhen Ankbit Electronics Limited w ith the FRN 0032250276 accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). Sincerely, Signature junkui chen Manager ShenZhen Ankbit Electronics Limited Signature Tim Payne Manager FCC US Agent, LLC 48_[model] US_Agent_2.911(d)(7)-U, V04

Covered Equipment Identification Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows: We, applicant Company Name: ShenZhen Ankbit Electronics Limited Address: Room 401, Building B,Runfeng Industrial Park, No. 4197 Baoan Blvd., Xixiang St., Baoan Dist., Shenzhen, China Phone: +86-13760122493 certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-05-28 Name / Title: Junkui Chen / Manager Company: ShenZhen Ankbit Electronics Limited Address: Room 401, Building B,Runfeng Industrial Park, No. 4197 Baoan Blvd., Xixiang St., Baoan Dist., Shenzhen, China Phone: +86-13760122493 Fax: n/a E-Mail: [email protected]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2A6ET-RT6135 E35, E37, E39, E55, E57, E59 We, applicant Company Name: ShenZhen Ankbit Electronics Limited Address: Room 401, Building B,Runfeng Industrial Park, No. 4197 Baoan Blvd., Xixiang St., Baoan Dist., Shenzhen, China Phone: +86-13760122493 certify that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-05-28 Name / Title: Junkui Chen / Manager Company: ShenZhen Ankbit Electronics Limited Address: Room 401, Building B,Runfeng Industrial Park, No. 4197 Baoan Blvd., Xixiang St., Baoan Dist., Shenzhen, China Phone: +86-13760122493 Fax: n/a E-Mail: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 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 request confidentiality for the documentation of the following products: FCC ID Model name 2A6ET-RT6135 E35, E37, E39, E55, E57, E59 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-05-28 Name / Title: Junkui Chen / Manager Company: ShenZhen Ankbit Electronics Limited Address: Room 401, Building B,Runfeng Industrial Park, No. 4197 Baoan Blvd., Xixiang St., Baoan Dist., Shenzhen, China Phone: +86-13760122493 Fax: n/a E-Mail: [email protected]

ShenZhen Ankbit Electronics Limited Room 401, Building B,Runfeng Industrial Park, No. 4197 Baoan Blvd., Xixiang St., Baoan Dist., Shenzhen, China Date: May 25, 2023 FCC ID: 2A6ET-RT6135 Model Number: E35, E37, E39, E55, E57, E59 To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, ShenZhen Ankbit Electronics Limited hereby declare that our product (Open TWS Headphones) Model Number: E35, E37, E39, E55, E57, E59 board, Schematic, Hardware version, Software version, structure and internal photos are same, named differently due to marketing purposes. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely, (Signed) Name/Title: Junkui Chen/ Manager Company: ShenZhen Ankbit Electronics Limited Address: Room 401, Building B,Runfeng Industrial Park, No. 4197 Baoan Blvd., Xixiang St., Baoan Dist., Shenzhen, China Tel: +86-13760122493 Fax: n/a E-Mail: [email protected]

Page 1 of 5 FCC ID: 2A6ET-RT6135 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 5 FCC ID: 2A6ET-RT6135 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 5 FCC ID: 2A6ET-RT6135 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 5 FCC ID: 2A6ET-RT6135 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 5 FCC ID: 2A6ET-RT6135 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

Page 1 of 1 FCC ID: 2A6ET-RT6135 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 Open TWS Headphones Model: E35 FCC ID: 2A6ET-RT6135

Page 1 of 5 FCC ID: 2A6ET-RT6135 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 Antenna Page 2 of 5 FCC ID: 2A6ET-RT6135 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 5 FCC ID: 2A6ET-RT6135 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 5 FCC ID: 2A6ET-RT6135 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 5 FCC ID: 2A6ET-RT6135 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 1 of 3 FCC ID: 2A6ET-RT6135 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 : Open TWS Headphones Test Model : E35 Additional Model No. : E37, E39, E55, E57, E59 Model Declaration : PCB board, structure and internal of these model(s) are the same, So no additional models were tested Power Supply : Input: 5V1A Output: 5V0.5A Headset: DC 3.6V by Rechargeable Li-ion Battery, 110mAh Charging case: DC 3.7V by Rechargeable Li-ion Battery, 800mAh Hardware Version : RT6135-L-V1.0;RT6135-R-V1.0 Software Version : E35-313eq3-ota-LR_combined-2608ab475b563abc0c9911d63c69 d41e Bluetooth : 2402MHz ~ 2480MHz Channel Number : 79 channels for Bluetooth V5.2(DSS) Channel Spacing : 1MHz for Bluetooth V5.2(DSS) Modulation Type : GFSK, π/4-DQPSK, 8-DPSK for Bluetooth V5.2(DSS) Bluetooth Version : V5.2 Antenna Type : FPC Antenna Antenna Gain : 0dBi Exposure category : General population/uncontrolled environment EUT Type : Production Unit Device Type : Portable 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 Page 2 of 3 FCC ID: 2A6ET-RT6135 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 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 4. Conducted Power Results <BT> Mode Channel Frequency (MHz) Peak Conducted Output Power (dBm) GFSK 0 2402 2.71 39 2441 2.32 78 2480 1.85 π/4DQPSK 0 2402 5.02 39 2441 4.65 78 2480 4.20 8DPSK 0 2402 5.48 39 2441 5.05 78 2480 4.71 Page 3 of 3 FCC ID: 2A6ET-RT6135 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street…

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深圳市华芯无线技术有限公司 深圳市楚风通讯技术有限公司 1.Test System/测试系统 2.Test Item/测试项目 3.Test sample and environment/测试样品及环境 4. VSWR/LOSS/Efficiency/Gain/电压驻波/损失/效率/增益/3D图 5. Product structure diagram/产品结构图 天线测试数据 Test ItemTest Equipment S11、S12 、VSWR 、LOSS...... Network Analyzer E5071C、ZVB8 Efficiency、Gain 3D Radiation Pattern OTA Chamber、ZVB8 TRP、TIS OTA Chamber、CMW500、 ZVB8 VSWR/LOSS/电压驻波/损失 R天线L天线 Efficiency /效率 Gain/增益 Frequency/MHzMaxGain/dBi 2400 -2.58 2410 -3.03 2420 -2.3 2430 -2.79 2440 -1.92 2450 -1.81 2460 -1.47 2470 -0.72 2480 -1.04 2490 0 2500 -0.81 Frequency/MhEfficiency / % 2400 22.73 2410 24.88 2420 24.77 2430 25.49 2440 29.55 2450 30.84 2460 30.04 2470 33.33 2480 32.41 2490 35.59 2500 33.28 Frequency/MHzMaxGain/dBi 2400 -4.67 2410 -5.23 2420 -4.95 2430 -5.25 2440 -5.19 2450 -5.01 2460 -5.06 2470 -4.28 2480 -4.5 2490 -3.29 2500 -3.97 Frequency/MhEfficiency / % 2400 11.99 2410 11.59 2420 12.85 2430 13.15 2440 14.16 2450 15.14 2460 15.63 2470 17.58 2480 17.46 2490 19.91 2500 19.41 R天线L天线 3D图 R天线2.4G L天线2.4G Product structure diagram/产品结构图

Page 1 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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: Open TWS Headphones Test Model: E35 Environmental Conditions Temperature: 23.5  C Relative Humidity: 52.2% ATM Pressure: 100.0 kPa Test Engineer: Nick Peng Supervised by: Ling Zhu Page 2 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 Emission Bandwidth Test Result TestMode Antenna Frequency[MHz] 20db EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 0.966 2401.577 2402.543 N/A PASS 2441 0.966 2440.574 2441.540 N/A PASS 2480 0.957 2479.577 2480.534 N/A PASS 2DH5 Ant1 2402 1.365 2401.367 2402.732 N/A PASS 2441 1.371 2440.361 2441.732 N/A PASS 2480 1.374 2479.358 2480.732 N/A PASS 3DH5 Ant1 2402 1.353 2401.367 2402.720 N/A PASS 2441 1.356 2440.364 2441.720 N/A PASS 2480 1.353 2479.367 2480.720 N/A PASS Page 3 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 Page 4 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 2DH5_Ant1_2402 2DH5_Ant1_2441 Page 5 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 2DH5_Ant1_2480 3DH5_Ant1_2402 Page 6 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 3DH5_Ant1_2441 3DH5_Ant1_2480 Page 7 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 Page 8 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 Test Result Peak Test Mode Antenna Frequency[MHz] Conducted Peak Powert[dBm] Conducted Limit[dBm] Verdict DH5 Ant1 2402 2.71 ≤20.97 PASS 2441 2.32 ≤20.97 PASS 2480 1.85 ≤20.97 PASS 2DH5 Ant1 2402 5.02 ≤20.97 PASS 2441 4.65 ≤20.97 PASS 2480 4.20 ≤20.97 PASS 3DH5 Ant1 2402 5.48 ≤20.97 PASS 2441 5.05 ≤20.97 PASS 2480 4.71 ≤20.97 PASS Page 9 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 Page 10 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 2DH5_Ant1_2402 2DH5_Ant1_2441 Page 11 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 2DH5_Ant1_2480 3DH5_Ant1_2402 Page 12 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 3DH5_Ant1_2441 3DH5_Ant1_2480 Page 13 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 Page 14 of 55 FCC ID: …

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Page 31 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 DH5_Ant1_2402_1000~26500 Page 32 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 DH5_Ant1_2441_0~Reference DH5_Ant1_2441_30~1000 Page 33 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 DH5_Ant1_2441_1000~26500 DH5_Ant1_2480_0~Reference Page 34 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 DH5_Ant1_2480_30~1000 DH5_Ant1_2480_1000~26500 Page 35 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 2DH5_Ant1_2402_0~Reference 2DH5_Ant1_2402_30~1000 Page 36 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 2DH5_Ant1_2402_1000~26500 2DH5_Ant1_2441_0~Reference Page 37 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 2DH5_Ant1_2441_30~1000 2DH5_Ant1_2441_1000~26500 Page 38 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 2DH5_Ant1_2480_0~Reference 2DH5_Ant1_2480_30~1000 Page 39 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 2DH5_Ant1_2480_1000~26500 3DH5_Ant1_2402_0~Reference Page 40 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 3DH5_Ant1_2402_30~1000 3DH5_Ant1_2402_1000~26500 Page 41 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 3DH5_Ant1_2441_0~Reference 3DH5_Ant1_2441_30~1000 Page 42 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 3DH5_Ant1_2441_1000~26500 3DH5_Ant1_2480_0~Reference Page 43 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 3DH5_Ant1_2480_30~1000 3DH5_Ant1_2480_1000~26500 Page 44 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 Page 45 of 55 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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.8 Emissions in R…

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Page 1 of 36 FCC ID: 2A6ET-RT6135 Report No.: LCSA041423043EA 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 ShenZhen Ankbit Electronics Limited Open TWS Headphones Test Model: E35 Additional Model No.: Please Refer to Page 6 Prepared for : ShenZhen Ankbit Electronics Limited Address : Room 401,Building B,Runfeng Industrial Park, No. 4197 Baoan Blvd., Xixiang St., Baoan Dist., Shenzhen, China Prepared by : Shenzhen LCS Compliance Testing Laboratory Ltd. Address : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street,…

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