FCC ID: 2AZTW-S400 True wireless Bluetooth headset

FCC WARNING The device has been evaluated to meet general RF exposure requirement. The device can be u sed in portable exposure condition without restriction

WARNING:pdfminer.pdfpage:The PDF <_io.BufferedReader name='/Volumes/Scratch/Incoming/eg-scratch/6125904.pdf'> contains a metadata field indicating that it should not allow text extraction. Ignoring this field and proceeding. Use the check_extractable if you want to raise an error in this case OTA TEST REPORT Report Reference No. ................ : CTL1904108091-O02 Compiled by:

( position+printed name+signature) Happy Guo

(File administrators) Tested by:

( position+printed name+signature) Nice Nong

(Test Engineer) Approved by:

( position+printed name+signature) Ivan Xie

(Manager) Product Name .............................. : 2.4GHz Antenna Model/Type reference ................. : BL2.4G Antenna-A Trade Mark ................................... : BELON Applicants name ........................ : Shenzhen BELON SOLUTIONS Co., Ltd. Address of applicant .................. :

Langshan Road, North District, High-tech Park, Nanshan District, Shenzhen Room 1206-07, Scientific Research Building, Tsinghua Information Harbor, China Test Firm ...................................... : Shenzhen CTL Testing Technology Co., Ltd. Address of Test Firm .................. :

Floor 1-A, Baisha Technology Park, No.3011, Shahexi Road, Nanshan District, Shenzhen, China 518055 Test specification ........................ :

Reference Standard ...................... : IEEE149-1979 TRF Originator .............................. : Shenzhen CTL Testing Technology Co., Ltd. Master TRF ................................... : Dated 2011-01 Date of receipt of test item ......... : Apr. 10, 2019 Date of sampling ......................... : Apr. 10, 2019 Date of Test Date ......................... : Apr. 10, 2019Apr. 12, 2019 Data of Issue ................................ : Apr. 12, 2019 Result ........................................... : Pass Shenzhen CTL Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTL Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTL 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. V1.0 Page 2 of 9 TEST REPORT Test Report No. :

CTL1904108091-O02 Apr. 12, 2019 Date of issue Equipment under Test Model /Type Applicant Address Manufacturer Address

2.4GHz Antenna BL2.4G Antenna-A Shenzhen BELON SOLUTIONS Co., Ltd. Langshan Road, North District, High-tech Park, Nanshan District, Shenzhen Room 1206-07, Scientific Research Building, Tsinghua Information Harbor, China Shenzhen BELON SOLUTIONS Co., Ltd. Langshan Road, North District, High-tech Park, Nanshan District, Shenzhen Room 1206-07, Scientific Research Building, Tsinghua Information Harbor, China Test result Pass *

* In the configuration tested, the EUT complied with the standards specified page 5. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the issuing testing laboratory. V1.0 Page 3 of 9 Revision Version 1.0 Description Initial Test Report Release Issued Data 2019-04-10 Report No. 904108091-001 Remark Tracy Qi

** Modified History **

V1.0 Page 4 of 9 Contents 1 SUMMAROFTESTRESULTS...................................................................................................................................5 1.1 1.2 1.3 1.4 1.5 1.6 EQUIPMENTUNDERTEST...............................................................................................................................................5 TESTMETHOD..............................................................................................................................................................5 TESTSETUP.................................................................................................................................................................5 TESTCONDITIONS........................................................................................................................................................5 TESTEQUIPMENTLIST...................................................................................................................................................5 TESTUNCERTAINTY.......................................................................................................................................................5 2 TESTITEMANDRESULTS.......................................................................................................................................6 2.11#....................................................................................................................................................................................6 3 4 TESTSETUPPHOTOSOFTHEEUT..........................................................................................................................7 PHOTOSOFTHEEUT.............................................................................................................................................9 V1.0 Page 5 of 9 1 SUMMAR OF TEST RESULTS 1.1 Equipment under Test No. 1#

EUT status intact 1.2 Test method 1. Test 5 antennas under Standard IEEE149-1979 and record the test results(first test results). 1.3 Test Setup 1.4 Test Conditions For twice test conditions, please see the table below:

Test No. Test date Ambient Pressure(KPa) Temperature() Relative Humidity(%) 1 2019.04.10 100-102 19-25 45-60 1.5 Test Equipment List Description Vector Network Analyzer 5*5*5 Full Anechoic Chamber SG24 Multi-probe Antenna Measurement System Manufacturer Model Serial No. Agilent SATIMO E5071C MY46103472 CN-1307-555 5*5*5 Cal. Due Cal. Date 2018.1.25 2019.1.25 2018.09.28 2019.09.28 SATIMO SG24-L 1101855-0001 2018.12.4 2019.12.4 1.6 Test Uncertainty Item Gain Uncertainty 1.03dB V1.0 Page 6 of 9 2 TEST ITEM AND RESULTS 2.1 1#

First Test results:

2.4GHz Gain and Efficiency EUTNO

2#

Frequency

ETotal.dB(dBi)

Efficiency()

2400MHz

2410MHz

2420MHz

2430MHz

2440MHz

2450MHz

2460MHz

2470MHz

2480MHz

2490MHz

2500MHz

Radiation Pattern Phi=0 0.61

0.54

0.59

0.62

0.60

0.66

0.85

0.99

1.03

0.88

0.78

49%

50%

52%

52%

51%

52%

53%

53%

53%

51%

51%

V1.0 Phi=90 Page 7 of 9 Theta=90 3 Test Setup Photos of the EUT V1.0 Page 8 of 9 V1.0 Page 9 of 9 4 Photos of the EUT

********************** End of Report **********************

Shenzhen Jinguan Technology Co., Ltd.

(2022.09.15) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology 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, Signature:

Name: Gang Zhong Title: manager

Shenzhen Jinguan Technology Co., Ltd.

(2022.09.15) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (True wireless Bluetooth headset / S400 , F400, U400/ FCC ID: 2AZTW-S400 ) 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 Exhibits ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info Long-Term Confidentiality No No No No No NOTE 1 NOTE 1 No No Short-Term Confidentiality NOTE 2 No No No No No No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature:

Name: Gang Zhong Title: manager

Shenzhen Jinguan Technology Co., Ltd. Model Difference Data2022.09.15 Product description: True wireless Bluetooth headset Model name: S400, F400, U400 Trade Name: ELLAS EARS FCC ID: 2AZTW-S400 All the model are the same circuit and RF module, except model names . Regards Sincerely Clients signature :

Clients name / title : Gang Zhongmanager Contact information / address401, building 2, bright Science Park, No. 88, Zhuguang North Road, Pingshan community, Taoyuan Street, Nanshan District, Shenzhen, China