2AL9B-BB1999Bluetooth Headphones

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 2/13/2020 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 Model name 2AL9B-BB1999 BB1999 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: LEO GUO Company: SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED Address: ROOM 709,BLOCK B,XINTIAN CENTURY BUSINESS CENTRE,FUMING ROAD,FUTIAN DISTRICT,SHENZHEN,CHINA Phone: +86-755-82324457 Fax: +86-755-82324457 E-Mail: [email protected]

SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED ROOM 709,BLOCK B,XINTIAN CENTURY BUSINESS CENTRE,FUMING ROAD,FUTIAN DISTRICT,SHENZHEN,CHINA Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2/13/2020 To whom it may concern: We, SHENZHEN SHENGLAI TECHNOLOGY CO.,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: 2AL9B-BB1999 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, Signature LEO GUO Manager SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED

Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 This report shall not be reproduced except in full, without the written approval of Shenzhen HUAK Testing Technology Co., Ltd. Page 1 of 3 EXTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 This report shall not be reproduced except in full, without the written approval of Shenzhen HUAK Testing Technology Co., Ltd. Page 2 of 3 Fig.3 Fig.4 Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 This report shall not be reproduced except in full, without the written approval of Shenzhen HUAK Testing Technology Co., Ltd. Page 3 of 3 Fig.5 Fig.6

Label & Label Location Size: 20mm(L)*5mm(W) FCC ID: 2AL9B-BB1999

Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 This report shall not be reproduced except in full, without the written approval of Shenzhen HUAK Testing Technology Co., Ltd. Page 1 of 4 INTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 This report shall not be reproduced except in full, without the written approval of Shenzhen HUAK Testing Technology Co., Ltd. Page 2 of 4 Fig.3 Fig.4 Bluetooth Antenna Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 This report shall not be reproduced except in full, without the written approval of Shenzhen HUAK Testing Technology Co., Ltd. Page 3 of 4 Fig.5 Fig.6 Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 This report shall not be reproduced except in full, without the written approval of Shenzhen HUAK Testing Technology Co., Ltd. Page 4 of 4 Fig.7

Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 This report shall not be reproduced except in full, without the written approval of Shenzhen HUAK Testing Technology Co., Ltd. Page 1 of 2 RADIO FREQUENCY EXPOSURE Limit According to section 4.3.1 of KDB 447498 D01 General RF Exposure Guidance v06, SAR evaluation is required if the separation distance between the user and/or bystander and the antenna and/or radiating element of the device is less than or equal to 20 cm, except when the device operates at or below the applicable output power level (adjusted for tune-up tolerance) for the specified separation distance defined in Appendix A. Appendix A SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm MHz 5 10 15 20 25 mm 150 39 77 116 155 194 SAR Test Exclusion Threshold (mW) 300 27 55 82 110 137 450 22 45 67 89 112 835 16 33 49 66 82 900 16 32 47 63 79 1500 12 24 37 49 61 1900 11 22 33 44 54 2450 10 19 29 38 48 3600 8 16 24 32 40 5200 7 13 20 26 33 5400 6 13 19 26 32 5800 6 12 19 25 31 MHz 30 35 40 45 50 mm 150 232 271 310 349 387 SAR Test Exclusion Threshold (mW) 300 164 192 219 246 274 450 134 157 179 201 224 835 98 115 131 148 164 900 95 111 126 142 158 1500 73 86 98 110 122 1900 65 76 87 98 109 2450 57 67 77 86 96 3600 47 55 63 71 79 5200 39 46 53 59 66 5400 39 45 52 58 65 5800 37 44 50 56 62 Note: Manufacturer declared that the maximum antenna gain is 0.0dBi (Max.). Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 This report shall not be reproduced except in full, without the written approval of Shenzhen HUAK Testing Technology Co., Ltd. Page 2 of 2 Conducted Power Results Test Mode Channel Frequency (MHz) Measured Peak Output Power (dBm) GFSK 00 2402 -2.630 39 2441 -2.037 78 2480 -1.858 π/4-DQPSK 00 2402 -2.574 39 2441 -2.048 78 2480 -1.951 8-DPSK 00 2402 -2.635 39 2441 -2.036 78 2480 -1.916 Manufacturing tolerance GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -3.0 -2.5 -2.0 Tolerance ±(dB) 1.0 1.0 1.0 π/4-DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -3.0 -2.5 -2.0 Tolerance ±(dB) 1.0 1.0 1.0 8-DPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -3.0 -2.5 -2.0 Tolerance ±(dB) 1.0 1.0 1.0 Results Test Mode Channel Frequency (MHz) Max. Tune Up Power (dBm, Peak) Max. Eirp including Tune Up (dBm, Peak) Max. Eirp including Tune Up (mW, Peak) Exemption Limit (mW) GFSK 2402 -2.0 -2.0 0.63 10 2440 -1.5 -1.5 0.71 10 2480 -1.0 -1.0 0.79 10 π/4-DQPSK 2402 -2.0 -2.0 0.63 10 2440 -1.5 -1.5 0.71 10 2480 -1.0 -1.0 0.79 10 8-DPSK 2402 -2.0 -2.0 0.63 10 2440 -1.5 -1.5 0.71 10 2480 -1.0 -1.0 0.79 10 The antenna gain of the EUT for BT is 0.0dBi (Max). the Maximum Eirp is used for Routine Evaluation Exemption according to section 4.3.1 of KDB 447498 D01. So, the SAR evaluation is not required.

Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 1 of 45 Appendix A RF Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: Bluetooth Headphones Trade Mark: Billboard Test Model: BB1999 FCC ID: 2AL9B-BB1999 Environmental Conditions Temperature: 22.7 C Relative Humidity: 45% ATM Pressure: 100.0 kPa Test Engineer: Gary Qian Supervised by: Eden Hu A.1 20 dB Bandwidth Mode Channel. 20dB Bandwidth [MHz] Limit(MHz) Verdict GFSK LCH 0.941 Not Specified PASS GFSK MCH 0.941 Not Specified PASS GFSK HCH 0.944 Not Specified PASS π/4DQPSK LCH 1.246 Not Specified PASS π/4DQPSK MCH 1.250 Not Specified PASS π/4DQPSK HCH 1.314 Not Specified PASS 8DPSK LCH 1.308 Not Specified PASS 8DPSK MCH 1.265 Not Specified PASS 8DPSK HCH 1.309 Not Specified PASS Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 2 of 45 Test Graph Graphs GFSK/LCH GFSK/MCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 3 of 45 GFSK/HCH π/4DQPSK/LCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 4 of 45 π/4DQPSK/MCH π/4DQPSK/HCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 5 of 45 8DPSK/LCH 8DPSK/MCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 6 of 45 8DPSK/HCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 7 of 45 A.2 Dwell Time Mode Packet Chann el Burst Width [s/hop/ch] Total Hops[hop*ch] Dwell Time[s] Limit [s] Verdic t GFSK DH5 LCH 0.002916 106.7 0.311091 0.4 PASS GFSK DH5 MCH 0.002916 106.7 0.311102 0.4 PASS GFSK DH5 HCH 0.002915 106.7 0.311036 0.4 PASS π/4DQPSK 2DH5 LCH 0.002915 106.7 0.311069 0.4 PASS π/4DQPSK 2DH5 MCH 0.002915 106.7 0.311029 0.4 PASS π/4DQPSK 2DH5 HCH 0.002914 106.7 0.310909 0.4 PASS 8DPSK 3DH5 LCH 0.002915 106.7 0.311068 0.4 PASS 8DPSK 3DH5 MCH 0.002914 106.7 0.31097 0.4 PASS 8DPSK 3DH5 HCH 0.002916 106.7 0.311127 0.4 PASS Test Graph Graphs GFSK_DH5/LCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 8 of 45 GFSK_DH5/MCH GFSK_DH5/HCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 9 of 45 π/4DQPSK _2DH5/LCH π/4DQPSK _2DH5/MCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 10 of 45 π/4DQPSK _2DH5/HCH 8DPSK _3DH5/LCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 11 of 45 8DPSK _3DH5/MCH 8DPSK _3DH5/HCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 12 of 45 A.3 Carrier Frequency Separation Mode Channel. Carrier Frequency Separation [MHz] Limit [MHz] Verdict GFSK LCH 1.007 0.873 PASS GFSK MCH 1.000 0.627 PASS GFSK HCH 1.022 0.629 PASS π/4DQPSK LCH 1.027 0.831 PASS π/4DQPSK MCH 0.999 0.833 PASS π/4DQPSK HCH 0.988 0.876 PASS 8DPSK LCH 1.016 0.872 PASS 8DPSK MCH 1.021 0.843 PASS 8DPSK HCH 0.987 0.873 PASS Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 13 of 45 Test Graph Graphs GFSK/LCH GFSK/MCH GFSK/HCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 14 of 45 π/4DQPSK/LCH π/4DQPSK/MCH π/4DQPSK/HCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 15 of 45 8DPSK/LCH 8DPSK/MCH 8DPSK/HCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 16 of 45 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 8DPSK Hop 79 >=15 PASS Test Graph Graphs GFSK/Hop Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 17 of 45 π/4DQPSK/Hop 8DPSK/Hop Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 18 of 45 A.5 Conducted Peak Output Power Mode Channel. Maximum Peak Output Power [dBm] Limit [dBm] Verdict GFSK LCH -2.630 21 PASS GFSK MCH -2.037 21 PASS GFSK HCH -1.858 21 PASS π/4DQPSK LCH -2.574 21 PASS π/4DQPSK MCH -2.048 21 PASS π/4DQPSK HCH -1.951 21 PASS 8DPSK LCH -2.635 21 PASS 8DPSK MCH -2.036 21 PASS 8DPSK HCH -1.916 21 PASS Test Graph Graphs GFSK/LCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 19 of 45 GFSK/MCH GFSK/HCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 20 of 45 π/4DQPSK/LCH π/4DQPSK/MCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 21 of 45 π/4DQPSK/HCH 8DPSK/LCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 22 of 45 8DPSK/MCH 8DPSK/HCH Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 23 of 45 A.6 Band-edge for RF Conducted Emissions Type Carrier Frequency(MHz ) Frequency(MHz ) Carrier Frequency Power [dBm] Bandedge Peak(dBm ) Upper limit(dBm) Conclusio n 1DH5 2402 2400 -2.716 -48.36 -22.716 Pass 1DH5 2480 2483.907 -2.413 -32.651 -22.413 Pass 2DH5 2402 2394.15 -4.307 -42.735 -24.307 Pass 2DH5 2480 2483.5 -3.375 -50.17 -23.375 Pass 3DH5 2402 2400 -6.656 -42.7 -26.656 Pass 3DH5 2480 2483.5 -2.226 -45.85 -22.226 Pass 1DH5-Hopping 2402 2400 -2.49 -51.62 -22.49 Pass 1DH5-Hopping 2480 2484.37 -2.024 -34.947 -22.024 Pass 2DH5-Hopping 2402 2398.05 -2.507 -36.532 -22.507 Pass 2DH5-Hopping 2480 2489.26 -2.018 -43.555 -22.018 Pass 3DH5-Hopping 2402 2397.36 -2.509 -36.793 -22.509 Pass 3DH5-Hopping 2480 2483.5 -1.966 -36.628 -21.966 Pass Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 Report No.: HK2001070049-E Page 24 of 45 Test Graph Graphs GFSK/LCH/No Hop GFSK/HCH/No Hop Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB…

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Report No.: HK2001070049-E Page 1 of 35 FCC TEST REPORT Test report On Behalf of SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED For Bluetooth Headphones Model No: BB1999 FCC ID: 2AL9B-BB1999 Prepared for : SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED ROOM 709,BLOCK B,XINTIAN CENTURY BUSINESS CENTRE,FUMING ROAD,FUTIAN DISTRICT,SHENZHEN,CHINA Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test: January 10, 2020~ January 17, 2020 Date of Report: January 17, 2020 Report Number: HK2001070049-E Report No.: HK2001070049-E Page 2 of 35 TEST RESULT CERTIFICATION Applicant’s name ................. : SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED Address .................................. : ROOM 709,BLOCK B,XINTIAN CENTURY BUSINESS CENTRE,FUMING ROAD,FUTIAN DISTRICT,SHENZHEN,CHINA Manufacture's Name ............ : SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED Address .................................. : ROOM 709,BLOCK B,XINTIAN CENTURY BUSINESS CENTRE,FUMING ROAD,FUTIAN DISTRICT,SHENZHEN,CHINA Product description Trade Mark ............................. : Billboard Product name ........................... : Bluetooth Headphones Model No ................................ : BB1999 Standards ............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.247 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., 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. Date of Test ............................. ........... : Date (s) of performance of tests ........... : January 10, 2020~ January 17, 2020 Date of Issue ......................................... : January 17, 2020 Test Result ............................................ : PASS Testing Engineer : (Gary Qian) Technical Manager : (Eden Hu) Authorized Signatory : (Jason Zhou) Report No.: HK2001070049-E Page 3 of 35 Revision History Revision Issue Date Revisions Revised By 00 January 17, 2020 Initial Issue Jason Zhou Report No.: HK2001070049-E Page 4 of 35 TABLE OF CONTENTS Description Page 1. GENERAL INFORMATION ................................................................................................................ 5 1.1. Description of Device (EUT) ................................................................................................................... 5 1.2 Support equipment List ................................................................................................................................ 5 1.3 External I/O Cable ........................................................................................................................................ 5 1.4 Description of Test Facility .......................................................................................................................... 5 1.5 Statement of the Measurement Uncertainty ............................................................................................. 6 1.6 Measurement Uncertainty ........................................................................................................................... 6 1.7 Description of Test Modes .......................................................................................................................... 6 2. TEST METHODOLOGY/ ..................................................................................................................... 7 2.1 EUT Configuration ........................................................................................................................................ 7 2.2 EUT Exercise ................................................................................................................................................ 7 2.3 General Test Procedures ............................................................................................................................ 7 2.4. Test Sample ................................................................................................................................................. 7 3. SYSTEM TEST CONFIGURATION .................................................................................................. 8 3.1 Justification .................................................................................................................................................... 8 3.2 EUT Exercise Software ............................................................................................................................... 8 3.3 Special Accessories ..................................................................................................................................... 8 3.4 Block Diagram/Schematics ......................................................................................................................... 8 3.5 Equipment Modifications ............................................................................................................................. 8 3.6 Test Setup ..................................................................................................................................................... 8 4. SUMMARY OF TEST RESULTS ....................................................................................................... 9 5. SUMMARY OF TEST EQUIPMENT ............................................................................................... 10 6. MEASUREMENT RESULTS ............................................................................................................ 11 6.1 Peak Power ...................................................................…

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Shenzhen HUAK Testing Technology Co., Ltd. FCC ID: 2AL9B-BB1999 TEST SETUP PHOTOS OF THE EUT Radiated Emission Below 1GHz Radiated Emission Above 1GHz