2AL9B-V40049-BTBluetooth Neckband

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CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021/4/8 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-V40049-BT V40049BT For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： LEO GUO / Manager 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 2021/4/8 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-V40049-BT including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： LEO GUO / Manager 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 Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 EXTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Fig.5 Fig.6

Size: 20mm(L)*10mm(W) Label Location: FCC ID: 2AL9B-V40049-BT

Shenzhen Tongzhou Testing Co.,Ltd FCC ID:2AL9B-V40049-BT This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 INTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Bluetooth Antenna Shenzhen Tongzhou Testing Co.,Ltd FCC ID:2AL9B-V40049-BT This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID:2AL9B-V40049-BT This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Fig.5 Fig.6

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing 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 0dBi(Max.). Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 2 Conducted Power Results Test Mode Channel Frequency (MHz) Measured Peak Output Power (dBm) GFSK 00 2402 5.99 39 2441 5.24 78 2480 4.24 π/4-DQPSK 00 2402 5.94 39 2441 5.19 78 2480 3.99 Manufacturing tolerance GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 5.5 5.0 4.0 Tolerance ±(dB) 1.0 1.0 1.0 π/4-DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 5.5 5.0 3.5 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 6.5 6.5 4.47 10 2441 6.0 6.0 3.98 10 2480 5.0 5.0 3.16 10 π/4-DQPSK 2402 6.5 6.5 4.47 10 2441 6.0 6.0 3.98 10 2480 4.5 4.5 2.82 10 The antenna gain of the EUT for BT is 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 Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 1 of 26 Appendix A RF Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: Bluetooth Neckband Trade Mark: Vivitar Test Model: V40049BT FCC ID: 2AL9B-V40049-BT Environmental Conditions Temperature: 22.8 C Relative Humidity: 56% ATM Pressure: 100.0 kPa Test Engineer: Nancy Li Supervised by: Hugo Chen A.1 20 dB Bandwidth TestMode Antenna Channel 20db EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 0.939 2401.559 2402.498 --- PASS 2441 0.951 2440.559 2441.510 --- PASS 2480 0.945 2479.559 2480.504 --- PASS 2DH5 Ant1 2402 1.317 2401.361 2402.678 --- PASS 2441 1.326 2440.358 2441.684 --- PASS 2480 1.263 2479.388 2480.651 --- PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 2 of 26 Test Graph DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 3 of 26 2DH5_Ant1_2402 2DH5_Ant1_2441 2DH5_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 4 of 26 A.2 Dwell Time TestMode Antenna Channel BurstWidth [ms] TotalHops [Num] Result[s] Limit[s] Verdict DH5 Ant1 Hop 2.88 90 0.259 <=0.4 PASS 2DH5 Ant1 Hop 2.89 130 0.375 <=0.4 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 5 of 26 Test Graph DH5_Ant1_Hop Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 6 of 26 2DH5_Ant1_Hop Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 7 of 26 A.3 Carrier Frequency Separation TestMode Antenna Channel Result[MHz] Limit[MHz] Verdict DH5 Ant1 Hop 0.902 >=0.634 PASS 2DH5 Ant1 Hop 1.020 >=0.884 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 8 of 26 Test Graph DH5_Ant1_Hop 2DH5_Ant1_Hop Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 9 of 26 A.4 Hopping Channel Number TestMode Antenna Channel Result[Num] Limit[Num] Verdict DH5 Ant1 Hop 79 >=15 PASS 2DH5 Ant1 Hop 79 >=15 PASS Test Graph DH5_Ant1_Hop 2DH5_Ant1_Hop Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 10 of 26 A.5 Conducted Peak Output Power TestMode Antenna Channel Result[dBm] Limit[dBm] Verdict DH5 Ant1 2402 5.99 <=20.97 PASS 2441 5.24 <=20.97 PASS 2480 4.24 <=20.97 PASS 2DH5 Ant1 2402 5.94 <=20.97 PASS 2441 5.19 <=20.97 PASS 2480 3.99 <=20.97 PASS Test Graph DH5_Ant1_2402 DH5_Ant1_2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 11 of 26 DH5_Ant1_2480 2DH5_Ant1_2402 2DH5_Ant1_2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 12 of 26 2DH5_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 13 of 26 A.6 Band-edge for RF Conducted Emissions TestMode Antenna ChName Channel RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 Low 2402 5.52 -43.28 <=-14.49 PASS High 2480 3.86 -48.38 <=-16.14 PASS Low Hop_2402 4.55 -50.01 <=-15.45 PASS High Hop_2480 4.66 -48.53 <=-15.34 PASS 2DH5 Ant1 Low 2402 5.01 -41.59 <=-15 PASS High 2480 2.07 -48.5 <=-17.93 PASS Low Hop_2402 4.30 -50.38 <=-15.7 PASS High Hop_2480 3.15 -48.72 <=-16.85 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 14 of 26 Test Graph DH5_Ant1_Low_2402 DH5_Ant1_High_2480 DH5_Ant1_Low_Hop_2402 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 15 of 26 DH5_Ant1_High_Hop_2480 2DH5_Ant1_Low_2402 2DH5_Ant1_High_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 16 of 26 2DH5_Ant1_Low_Hop_2402 2DH5_Ant1_High_Hop_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 17 of 26 A.7 RF Conducted Spurious Emissions Test Graph DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 DH5_Ant1_2402_1000~26500 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 18 of 26 DH5_Ant1_2441_0~Reference DH5_Ant1_2441_30~1000 DH5_Ant1_2441_1000~26500 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 19 of 26 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 DH5_Ant1_2480_1000~26500 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 20 of 26 2DH5_Ant1_2402_0~Reference 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 21 of 26 2DH5_Ant1_2441_0~Reference 2DH5_Ant1_2441_30~1000 2DH5_Ant1_2441_1000~26500 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 22 of 26 2DH5_Ant1_2480_0~Reference 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT Report No.: TZ210302090-E Page 23 of 26 A.8 Restrict-band band-edge measurements TestMode Antenna ChName Channel Detector Freq(MHz) Result(dBm) Limit(dBm) Verdict DH5 Ant1 Low 2402 AV 2310.000 -48.95 <=-41.20 PASS AV 2390.000 -48.6 <=-41.20 PASS Peak 2310.000 -40.01 <=-21.20 PASS Peak 2390.000 -40.87 <=-21.20 PASS High 2480 AV 2483.500 -47.71 <=-41.20 PASS AV 2500.000 -48.31 <=-41.20 PASS Peak 2483.500 -42.47 <=-21.20 PASS Peak 2500.000 -42.2 <=-21.20 PASS 2DH5 Ant1 Low 2402 AV 2310.000 -48.94 <=-41.20 PASS AV 2390.000 -48.7 <=-41.20 PASS Peak 2310.000 -42.2 <=-21.20 PASS Peak 2390.000 -40.18 <=-21.20 PASS High 2480 AV 2483.500 -43.26 <=-41.20 PASS AV 2500.000 -47.98 <=-41.20 PASS Peak 2483.500 -41.46 <=-21.20 PASS Peak 2500.000 -41.2 <=-21.20 PASS Note: 1. The Antenna Gain is compensated in the graph with 2dBi and Antenna Gain which is Higher. 2. The limit in dBm for average detector is conversion from 54dBuV/m, according to 15.209(a). The limit in dBm for peak detector is 20dB above the limit of average…

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Report No.: TZ210302090-E Page 1 of 36 FCC TEST REPORT Test report On Behalf of Shenzhen Shenglai Technology Co., Limited For Bluetooth Neckband Model No: V40049BT FCC ID: 2AL9B-V40049-BT Prepared for : Shenzhen Shenglai Technology Co., Limited ROOM 709,BLOCK B,XINTIAN CENTURY BUSINESS CENTRE,FUMING ROAD,FUTIAN DISTRICT,SHENZHEN,China Prepared By : Shenzhen Tongzhou Testing Co.,Ltd 1th Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Date of Test: 2021/3/15 – 2021/3/23 Date of Report: 2021/3/23 Report Number: TZ210302090-E The test report apply only to the specific sample(s) tested under stated test conditions It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: TZ210302090-E Page 2 of 36 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 ............................. : Vivitar Product name ........................... : Bluetooth Neckband Model No ................................ : V40049BT 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 Tongzhou Testing Co.,Ltd is acknowledged as copyright owner and source of the material. Shenzhen Tongzhou Testing 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 ........... : 2021/3/15- 2021/3/23 Date of Issue ......................................... : 2021/3/23 Test Result ............................................ : PASS Testing Engineer : (Nancy Li) Technical Manager : (Hugo Chen) Authorized Signatory : (Andy Zhang) Report No.: TZ210302090-E Page 3 of 36 Revision History Revision Issue Date Revisions Revised By 00 2021/3/23 Initial Issue Andy Zhang Report No.: TZ210302090-E Page 4 of 36 TABLE OF CONTENTS Description Page 1. GENERAL INFORMATION ................................................................................................................ 5 1.1. Description of Device (EUT) ................................................................................................................... 5 1.2 Support equipment List ................................................................................................................................ 5 1.3 EUT configuration ......................................................................................................................................... 5 The following peripheral devices and interface cables were connected during the measurement: ....... 5 1.4 External I/O Cable ........................................................................................................................................ 5 1.5 Description of Test Facility .......................................................................................................................... 6 1.6 Statement of the Measurement Uncertainty ............................................................................................. 7 1.7 Measurement Uncertainty ........................................................................................................................... 7 1.8 Description of Test Modes .......................................................................................................................... 7 2. TEST METHODOLOGY ...................................................................................................................... 8 2.1 EUT Configuration ........................................................................................................................................ 8 2.2 EUT Exercise ................................................................................................................................................ 8 2.3 General Test Procedures ............................................................................................................................ 8 2.4. Test Sample ................................................................................................................................................. 8 3. SYSTEM TEST CONFIGURATION .................................................................................................. 9 3.1 Justification .................................................................................................................................................... 9 3.2 EUT Exercise Software ............................................................................................................................... 9 3.3 Special Accessories ..................................................................................................................................... 9 3.4 Block Diagram/Schematics ......................................................................................................................... 9 3.5 Equipment Modifications ............................................................................................................................. 9 3.6 Test Setup ..................................................................................................................................................... 9 4. SUMMARY OF TEST RESULTS ..................................................................…

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Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-V40049-BT This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 1 TEST SETUP PHOTOS OF THE EUT Radiated Emission Below 1GHz Radiated Emission Above 1GHz