2AX6OX200TXWireless Microphone

Professional
Wireless
Video
Recording
Microphone X200/X200S X200
TXX200
RX FCC warning statement 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, and 2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party r esponsible fo r compliance could void the user's authority to operate the equipment. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. This device operates on a no‐protection, no‐interference basis. Should the user seek to obt ain pr otection from other radio services operating in the same TV bands, a radio license is required. For further details, consult Innovation, Science and Economic Development Canada’s document Client Procedures Circular CPC‐2‐1‐28, Voluntary Licensing of License‐Exempt Low‐Power Radio Apparatus in the TV Bands.

Zhizhen Audio Tech(Dongguan)Co.,Ltd Family models declaration letter. 2021-2-22 We Zhizhen Audio Tech(Dongguan)Co.,Ltd Of 2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan China Product: Wireless Microphone Model Name: X200TX Serial Model: X200,X200S,X100,X100T,X100S All the model are the same circuit and RF module,except colour model names. Thanks Sincerely, Client’s signature : Client’s name / title :Zhangchao / Manager Contact information / address: 2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan China

Zhizhen Audio Tech(Dongguan)Co.,Ltd (2021-02-22) MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Wireless Microphone / X200TX, X200,X200S,X100,X100T,X100S / FCC ID: 2AX6OX200TX) 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/BOM/Tune up Procedurer) required to be submitted with this application be permanently withheld from public review. Please contact me if there is any information you may need. Sincerely, Client’s signature : Client’s name / title :Zhangchao / Manager Contact information / address: 2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan China

Zhizhen Audio Tech(Dongguan)Co.,Ltd (2021-02-22) Eurofins MET Labs 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen STS Test Services 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 :Zhangchao / Manager Contact information / address: 2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan China

Page 1 of 6 Report No.: STS2012216 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: X200TX Photo 1 Photo 2 Page 2 of 6 Report No.: STS2012216 Photo 3 Photo 4 Page 3 of 6 Report No.: STS2012216 Photo 5 Photo 6 Page 4 of 6 Report No.: STS2012216 Photo 7 Photo 8 Page 5 of 6 Report No.: STS2012216 Photo 9 Photo 10 Page 6 of 6 Report No.: STS2012216 Photo 11

4cm Label Location Model: X200TX FCC ID: 2AX6OX200TX 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, and (2)this device must accept any interference received, including interference that may causeundesired operation. 2 cm 4cm 4cm 4cm Model: X200 FCC ID: 2AX6OX200TX 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, and (2)this device must accept any interference received, including interference that may causeundesired operation. 2 cm Model: X200S FCC ID: 2AX6OX200TX 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, and (2)this device must accept any interference received, including interference that may causeundesired operation. 2 cm Model: X100 FCC ID: 2AX6OX200TX 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, and (2)this device must accept any interference received, including interference that may causeundesired operation. 2 cm 4cm 4cm Model: X100S FCC ID: 2AX6OX200TX 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, and (2)this device must accept any interference received, including interference that may causeundesired operation. 2 cm Model: X100T FCC ID: 2AX6OX200TX 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, and (2)this device must accept any interference received, including interference that may causeundesired operation. 2 cm

Page 1 of 4 Report No.: STS2012216 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: X200TX Photo 1 Photo 2 Antenna Page 2 of 4 Report No.: STS2012216 Photo 3 Photo 4 Page 3 of 4 Report No.: STS2012216 Photo 5 Photo 6 Page 4 of 4 Report No.: STS2012216 Photo 7 Photo 8

FCC ID: 2AX6OX200TX RF EXPOSURE EVALUATION METHOD 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. FCC ID: 2AX6OX200TX frequency Maximum Peak Conducted Output Power Max Antenna Gain MHz dBm dBi 550.125~564.825MHz -2.75 1 572.125~586.825MHz -2.81 1 max possible output power (PK,conducted)：-2.75±1dbm for Band A max possible output power (PK,conducted)：-2.81±1dbm for Band B 1dBi logarithmic terms convert to numeric result is nearly 1.25. -1.75dbm=0.66mW -1.81 dbm=0.65mW Band A：550.125~564.825MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=0.66/5*√0.557025=0.09≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. Band B: 572.125~586.825MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 0.65/5*√0.572125=0.09≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. Conclusion: No SAR is required.

Any reproduction of this document must be done in full. No single part of this document may be reproduced without permission from STS, all test data presented in this report is only applicable to presented test sample. Shenzhen STS Test Services Co., Ltd. A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China TEL: +86-755 3688 6288 FAX: +86-755 3688 6277 E-mail:[email protected] FCC TEST REPORT Report No:STS2012216W01 Issued for Zhizhen Audio Tech(Dongguan)Co.,Ltd 2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan China Product Name: Wireless Microphone Brand Name: N/A Model Name: X200TX Series Model: X200,X200S,X100,X100T,X100S FCC ID: 2AX6OX200TX Test Standard: FCC Part 74 Rules S T L A B S Page 2 of 92 Report No.: STS2012216W01 TEST RESULT CERTIFICATION Applicant’s Name ................. : Zhizhen Audio Tech(Dongguan)Co.,Ltd Address .................................. : 2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan China Manufacturer's Name ........... : Zhizhen Audio Tech(Dongguan)Co.,Ltd Address .................................. : 2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan China Product Description Product Name ........................ : Wireless Microphone Brand Name ......................... : N/A Model Name........................... : X200TX Series Model .......................... : X200,X200S,X100,X100T,X100S Test Standards ..................... : FCC Part 74 Rules Test Procedure ....................... : ANSI C63.10-2013; C63.26-2015 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of STS, this document only be altered or revised by STS, personal only, and shall be noted in the revision of the document. Date of Test .............................................. : Date of receipt of test item ....................... : 29 Dec. 2020 Date of performance of tests .................... : 29 Dec. 2020 ~ 19 Jan. 2021 Date of Issue ............................................ : 19 Jan. 2021 Test Result ................................................ : Pass Testing Engineer : (Chris Chen) Technical Manager : (Sean she) Authorized Signatory : (Vita Li) Page 3 of 92 Report No.: STS2012216W01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 5 1.1 TEST FACTORY 6 1.2 MEASUREMENT UNCERTAINTY 6 2. GENERAL INFORMATION 7 2.1 GENERAL DESCRIPTION OF THE EUT 7 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 11 2.4 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 12 2.5 TEST EQUIPMENT 13 3. TEST METHODOLOGY 14 3.1 GENERAL TEST PROCEDURES 14 3.2 DESCRIPTION OF TEST MODES 14 3.3 FCC PART 15.205 RESTRICTED BANDS OF OPERATIONS 14 4. FCC PART 74 REQUIREMENTS 15 4.1 RADIATED SPURIOUS EMISSION 15 4.2 EMISSION MASK I 15 4.3 EMISSION MASK II 15 4.4 FREQUENCY STABILITY VS. TEMPERATURE & VOLTAGE 64 4.5 OCCUPIED BANDWIDTH 71 4.6 AUDIO FREQUENCY RESPONSE 76 4.7 MODULATION DEVIATION 79 4.8 RF OUTPUT POWER 82 4.9 CONDUCTED EMISSION MEASUREMENT 88 PHOTOS OF TEST SETUP 92 Page 4 of 92 Report No.: STS2012216W01 Revision History Rev. Issue Date Report NO. Effect Page Contents 00 19 Jan. 2021 STS2012216W01 ALL Initial Issue Page 5 of 92 Report No.: STS2012216W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: The EUT has been tested according to FCC CFR 47: Part 2: Frequency Allocations and Radio Treaty Matters: General Rules and Regulations (10-1-05 Edition) Part 74: Experimental Radio, Auxiliary, Special Broadcast and other program distributional services Emission Standard Item Limit Result FCC 2.1053; 74.861(e)(6) Radiated Spurious Emission Refer to 74.861e(6) PASS FCC 2.1046 (a), 74.861(e)(1) RF Output Power 250 mW PASS FCC 2.1047 (b), 74.861(e)(3) Modulation Deviation Refer to 74.861e(2) PASS FCC 2.1047 (a) Audio Frequency Response Refer to 2.1047(a) PASS FCC 74.861 (e)(5) Occupied Bandwidth < 200 KHz PASS FCC 74.861 (e)(6)(i) (ii); FCC 2.1049 Emission Mask Refer to 74.861e(6) PASS 2.1055(b); 74.861 e(4) Frequency Stability vs. Temperature Refer to 74.861e(4) PASS 2.1055(a)(1); 74.861 e(4) Frequency Stability vs. Voltage Refer to 74.861e(4) PASS FCC 15.207 Line Conducted Emissions Refer to 15.207 PASS NOTE: (1) “N/A” denotes test is not applicable in this Test Report. Page 6 of 92 Report No.: STS2012216W01 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.68dB 2 Unwanted Emissions, conducted ±2.988dB 3 All emissions, radiated 30-1GHz ±4.39dB 4 All emissions, radiated 1G-6GHz ±5.10dB 5 All emissions, radiated>6G ±5.48dB 6 Conducted Emission (9KHz-150KHz) ±2.79dB 7 Conducted Emission (150KHz-30MHz) ±2.80dB Page 7 of 92 Report No.: STS2012216W01 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name: Wireless Microphone Brand Name: N/A Model Name: X200TX Series Model : X200,X200S,X100,X100T,X100S Model Difference description: Only difference in model name. Emission Bandwidth: 126.13KHz Battery: Rated Voltage: 3.7V Charge Limit Voltage: 4.2V Capacity: 700mAh Operation Frequency Range Band A: 550.125 MHz- 564.825 MHz Band B: 572.125 MHz- 586.825 MHz Maximum Transmitte…

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Page 1 of 2 FCC ID: 2AX6OX200TX TNT Setup photo Model Name: X200TX TNT radiation L TNT radiation H Page 2 of 2 FCC ID: 2AX6OX200TX TNT conduction