2AW3EBTC-A6Bluetooth speakers

Frequency band:115KHz-205KHz ● Model: GJ27WE-0900250U

Shenzhen Kenuo Digital Technology Co., Ltd 2022.09.20 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Bluetooth speakers Trademark: N/A MODEL: BTC-A6 FCC ID:2AW3EBTC-A6 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. 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. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title: Weibiao Zhao / Manager Contact information / address: 4F, Building B, Jinhong Idustrial Park, Jiuwei Community, Hangcheng Street, Baoan District, Shenzhen City, China.

Shenzhen Kenuo Digital Technology Co., Ltd 2022.09.20 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature: Client’s name / title: Weibiao Zhao / Manager Contact information / address: 4F, Building B, Jinhong Idustrial Park, Jiuwei Community, Hangcheng Street, Baoan District, Shenzhen City, China.

External Photos

Label & label location 3 20mm*10mm 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, (2) this device must accept any interference received, including interference that may cause undesired operation FCC ID:2AW3EBTC-A6 Label location

Internal Photos Coil Antenna BT Antenna

深圳市仁芯微电子科技有限公司 物料承认书 SPECIFICATIONFORAPPROVAL 客户承认结果（APPROVALRESULT）： □合格(OK)□不合格(NG)□其他（OTHER）： 说明(REMARK)： 日期：年月日 承办(APPD)： 审核(CHKDBY)： 批准（APPROVALBY）： 客户名称 CUSTOMER 日期 DATE 客户产品名称 CUSTOMERPART NAME 供应商产品名称 VENDORPART NAME 发射线圈A11 客户规格型号 SPECIFICATION 仁芯微规格型号 SPECIFICATION A11-6.8UH－有孔无槽－ 引线长20MM-无背胶 客户产品编码 CUSTOMERPART NO. 供应商产品编码 VENDORPART NO. 制作（PRE.）：审核(CHKDBY)：批准（APPROVALBY）： 深圳市仁芯微电子科技有限公司 公司地址：深圳市宝安西乡共和工业路明月花都F栋911 联系人：沈笠 电话：0755-27908511/18926767659 传真：0755-27908511-111 E--Mail：[email protected] 第 1 页共 3 页 SPECIFICATION 规格型號： DESC A11-6.8UH－有孔无槽－引线长 20MM-无背胶 版本 Rev：A.0 客戶CUST: 客户料号CUSTP/N: 一、尺寸DIMENSION:(mm) A 43.0±1.5 B 20.5±0.5 C 1.25Max D 40±2 E 4±2 F 50±1 G 10 H 2.2Max I 5.3ref 注： 1. 交叉出线; 2.出线位置缠8mm(ref)宽度高 温胶纸1-2Ts; 3.线圈贴圆形硬磁片带槽，磁 片尺寸50±1mm,内孔5.3mm, 厚度为1.0±0.2mm。 二、原理图SCHEMATICDIAGRAM: 第 2 页共 3 页 三、绕线参数WindingSpecification: 四、电气特性ELECTRICALCHARACTERISTICS: 温度TEMPERATURE:25±10°C,湿度RELATIVEHUMIDITY:65±20% 序号 NO. 端子 TERMINAL 线径 WIRE 圈数 Turns 绕线方向 WindingDirection 1SF丝包线0.08*105P10TsCCW 序号 NO. 项目 ITEM 端子 TERMINAL 标准 SPECIFICATION 测试条件 TESTFREQUENCY 测试仪器 TESTEQUIPMENTS 1IND.S-F 3.8uH±20%单独线圈 100KHz/1.0VLCZMETER1062B 2IND.S-F 6.8 u H±10%加磁片 100KHz/1.0VLCZMETER1062B 3DCRS-F≤50mΩLCZMETER502B

RF EXPOSURE EVALUATION METHOD FCC ID:2AW3EBTC-A6 Applicable standard： In accordance with FCC 47 CFR part 2 (2.1093) this device has been defined as a portable device which is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. Portable devices must be evaluated using the specified in FCC 47 CFR part 2 (2.1093) and ANSI/IEEEC95.1-1992. and had been tested in accordance with the measurement methods and procedures specified in IEEE 1528-2003. Per FCC KDB 447498 D01 v06, the 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances s 50 mm are determined by: SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(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 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 is applied to determine SAR test exclusion. Modulation Test Channel Output Power (dBm) Limit (dBm) GFSK Low -0.057 21 GFSK Middle 0.628 21 GFSK High 1.076 21 π/4DQPSK Low 0.737 21 π/4DQPSK Middle 1.380 21 π/4DQPSK High 1.829 21 max possible output power (PK,conducted)：2±1dBm -0.58dBi logarithmic terms convert to numeric result is nearly 0.875 3dBm=2.00mW 2402MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 2.00/5*√2.402=0.62≤3.0 2441MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 2.00/5*√2.441=0.62≤3.0 2480MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 2.00/5*√2.48=0.63≤3.0 Conclusion: 1. [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] * [√f(GHz)] < 3.0. 2. SAR Test Exclusion Thresholds is 3.0 for separation distance 5mm. Therefore, SAR test is not required.

No.：BCTC/RF-EMC-00 5 Page 1 of 25 Edition：A.5 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2209510168-1E Applicant: Shenzhen Kenuo Digital Technology Co., Ltd Product Name: Bluetooth speakers Model/Type Ref.: BTC-A6 Tested Date: 2022-09-01 to 2022-09-16 Issued Date: 2022-09-16 Report No.: BCTC2209510168-1E No.：BCTC/RF-EMC-00 5 Page 2 of 25 Edition：A.5 FCC ID:2AW3EBTC-A6 The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: Bluetooth speakers Trademark: N/A Model/Type Ref.: BTC-A6 Prepared For: Shenzhen Kenuo Digital Technology Co., Ltd Address: 4F, Building B, Jinhong Idustrial Park, Jiuwei Community,Hangcheng Street, Baoan District, Shenzhen City, China. Manufacturer: Shenzhen Kenuo Digital Technology Co., Ltd Address: 4F, Building B, Jinhong Idustrial Park, Jiuwei Community,Hangcheng Street, Baoan District, Shenzhen City, China. Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2022-09-01 Sample tested Date: 2022-09-01 to 2022-09-16 Issue Date: 2022-09-16 Report No.: BCTC2209510168-1E Test Standards: FCC Part15.209 ANSI C63.10-2013 Test Results: PASS Tested by: Approved by: Jeff.Fu/Project Handler Zero Zhou/Reviewer Report No.: BCTC2209510168-1E No.：BCTC/RF-EMC-00 5 Page 3 of 25 Edition：A.5 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 4 2. Test Summary ....................................................................................................... 5 3. Measurement Uncertainty ..................................................................................... 6 4. Product Information And Test Setup ..................................................................... 7 4.1 Product Information ............................................................................................... 7 4.2 Support Equipment ............................................................................................... 7 4.3 Test Setup Configuration ...................................................................................... 8 4.4 Test Mode ............................................................................................................. 8 5. Test Facility And Test Instrument Used ................................................................. 9 5.1 Test Facility ........................................................................................................... 9 5.2 Test Instrument Used ............................................................................................ 9 6. Conducted Emissions .......................................................................................... 11 6.1 Block Diagram Of Test Setup .............................................................................. 11 6.2 Limit .................................................................................................................... 11 6.3 Test Procedure ................................................................................................... 11 6.5 Test Result .......................................................................................................... 12 7. Radiated Emissions ............................................................................................. 14 7.1 Block Diagram Of Test Setup .............................................................................. 14 7.2 Limit .................................................................................................................... 15 7.3 Test Procedure ................................................................................................... 15 7.4 Test Result .......................................................................................................... 16 8. Bandwidth Test .................................................................................................... 19 9. Antenna Requirements ........................................................................................ 21 10. EUT Photographs ................................................................................................ 22 11. EUT Test Setup Photographs .............................................................................. 23 (Note: N/A Means Not Applicable) Report No.: BCTC2209510168-1E No.：BCTC/RF-EMC-00 5 Page 4 of 25 Edition：A.5 1. Version Report No. Issue Date Description Approved BCTC2209510168-1E 2022-09-16 Original Valid Report No.: BCTC2209510168-1E No.：BCTC/RF-EMC-00 5 Page 5 of 25 Edition：A.5 2. Test Summary The Product has been tested according to the following specifications: No. Test Parameter Clause No Results 1 Conducted Emission 15.207 PASS 2 Radiated Emission 15.209 PASS 3 20dB Bandwidth 15.215 PASS 4 Antenna Requirement 15.203 PASS Report No.: BCTC2209510168-1E No.：BCTC/RF-EMC-00 5 Page 6 of 25 Edition：A.5 3. Measurement Uncertainty Where relevant, the following measurement uncertainty levels have been estimated for tests performed on the Product as specified in CISPR 16-4-2. This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of k=2. No. Item Uncertainty 1 3m chamber Radiated spurious emission(9kHz-30MHz) U=3.7dB 2 3m chamber Radiated spurious emission(30MHz-1GHz) U=4.3dB 3 3m chamber Radiated spurious emission(1GHz-18GHz) U=4.5dB 4 3m chamber Radiated spurious emission(18GHz-40GHz) U=3.34dB 5 Conducted Emission(150kHz-30MHz) U=3.20dB 6 Conducted Adjacent chann…

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No.：BCTC/RF-EMC-00 5 Page 1 of 13 Edition：A.5 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2209510168-2E Applicant: Shenzhen Kenuo Digital Technology Co., Ltd Product Name: Bluetooth speakers Model/Type Ref.: BTC-A6 Tested Date: 2022-09-01 to 2022-09-16 Issued Date: 2022-09-16 Report No.: BCTC2209510168-2E No.：BCTC/RF-EMC-00 5 Page 2 of 13 Edition：A.5 FCC ID:2AW3EBTC-A6 The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: Bluetooth speakers Trademark: N/A Model/Type Ref.: BTC-A6 Prepared For: Shenzhen Kenuo Digital Technology Co., Ltd Address: 4F, Building B, Jinhong Idustrial Park, Jiuwei Community,Hangcheng Street, Baoan District, Shenzhen City, China. Manufacturer: Shenzhen Kenuo Digital Technology Co., Ltd Address: 4F, Building B, Jinhong Idustrial Park, Jiuwei Community,Hangcheng Street, Baoan District, Shenzhen City, China. Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2022-09-01 Sample tested Date: 2022-09-01 to 2022-09-16 Issue Date: 2022-09-16 Report No.: BCTC2209510168-2E Test Standards: FCC CFR 47 part1, 1.1307(b), 1.1310 Test Results: PASS Tested by: Approved by: Jeff.Fu/Project Handler Zero Zhou/Reviewer Report No.: BCTC2209510168-2E No.：BCTC/RF-EMC-00 5 Page 3 of 13 Edition：A.5 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 4 2. Product Information ............................................................................................... 5 2.1 Product Information ............................................................................................... 5 2.2 Support Equipment ............................................................................................... 5 2.3 Test Mode ............................................................................................................. 5 3. Test Facility And Test Instrument Used ................................................................. 6 3.1 Test Facility ........................................................................................................... 6 3.2 Test Instrument Used ............................................................................................ 6 4. Method Of Measurement ....................................................................................... 7 4.1 Applicable Standard .............................................................................................. 7 4.2 Block Diagram Of Test Setup ................................................................................ 7 4.3 Limit ...................................................................................................................... 8 4.4 Test Procedure ..................................................................................................... 8 4.5 Equipment Approval Considerations ..................................................................... 8 4.6 E And H Field Strength ......................................................................................... 9 5. Photographs Of Test Set-Up ............................................................................... 10 (Note: N/A Means Not Applicable) Report No.: BCTC2209510168-2E No.：BCTC/RF-EMC-00 5 Page 4 of 13 Edition：A.5 1. Version Report No. Issue Date Description Approved BCTC2209510168-2E 2022-09-16 Original Valid Report No.: BCTC2209510168-2E No.：BCTC/RF-EMC-00 5 Page 5 of 13 Edition：A.5 2. Product Information 2.1 Product Information Model/Type Ref.: BTC-A6 Model differences: N/A. Product Description: Bluetooth speakers Operation Frequency: 115kHz-205kHz Antenna installation: loop coil antenna Ratings: DC 9V From Adapter Adapter Information: Manufacture: Shenzhen Guijin Technology Co., Ltd. Model No.: GJ27WE-0900250U Input: 100-240V~ 50/60Hz 0.8A Output: DC 9V 2.5A 22.5W Hardware Version: N/A Software Version: N/A 2.2 Support Equipment No. Device Type Brand Model Series No. Note E-1 Bluetooth speakers N/A BTC-A6 N/A EUT E-2 Adapter N/A GJ27WE-090025 0U N/A EUT Notes: 1. All the equipment/cables were placed in the worst-case configuration to maximize the emission during the test. 2. Grounding was established in accordance with the manufacturer’s requirements and conditions for the intended use. 2.3 Test Mode Test Mode 1 Wireless charging (5W)+USB 5V1A Test Mode 2 Wireless charging (7.5W)+USB 5V1A Report No.: BCTC2209510168-2E No.：BCTC/RF-EMC-00 5 Page 6 of 13 Edition：A.5 3. Test Facility And Test Instrument Used 3.1 Test Facility All measurement facilities used to collect the measurement data are located at Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China. The site and apparatus are constructed in conformance with the requirements of ANSI C63.4 and CISPR 16-1-1 other equivalent standards. FCC Test Firm Registration Number: 712850 IC Registered No.: 23583 3.2 Test Instrument Used Equipment Manufacturer Model No. Serial No. Last Cal. Next Cal. Electromagnetic radiation tester Wavecontrol SMP160 19SN0980 May 26, 2022 May 25, 2023 Electromagnetic field probe Wavecontrol WP400-3 20WP120082 Aug. 30, 2021 Aug. 29, 2022 843 Chamber ETS 843 84301 Aug. 27, 2020 Aug. 26, 2023 Software Frad EZ-EMC EMC-CON 3A1 \ \ Report No.: BCTC2209510168-2E No.：BCTC/RF-EMC-00 5 Page 7 of 13 Edition：A.5 4. Method Of Measurement 4.1 Applicable Standard According to §1.1307(b)(1), systems operating…

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Report No.: BCTC2209510168-1E No.：BCTC/RF-EMC-00 5 Page 23 of 25 Edition：A.5 11. EUT Test Setup Photographs Conducted emissions Photo Radiated Measurement Photos Report No.: BCTC2209510168-1E No.：BCTC/RF-EMC-00 5 Page 24 of 25 Edition：A.5