2AX6OMC2TWireless Microphone

Band A: 499.1 MHz- 509.1 MHz Band B: 487 MHz- 497 MHz FCC Warning 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Differences Description We Zhizhen Audio Tech(Dongguan)Co.,Ltd state: Product： Wireless Microphone Model Name： MC2T, MC2,MC2S,CM2,CM2S Brand Name： REALMIC FCC ID: 2AX6OMC2T The electrical circuit design, layout, components used and internal wiring for above models are identical, only different in model name. Signatory Date 2020-11-26 Signature Name: Zhangchao Title: Manager Company: Zhizhen Audio Tech(Dongguan)Co.,Ltd Address: 2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan, China

2020-11-26 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLC 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). Signature Name: Zhangchao Title: Manager Company: Zhizhen Audio Tech(Dongguan)Co.,Ltd Address: 2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan, China

2020-11-26 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen STS Test Services Co., Ltd., 1/F., Building B, Zhuoke Science Park, No.190, Chongqing Road, Fuyong Street, Bao’an District, Shenzhen, Guangdong,China (Name of Agent company name and address) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Zhizhen Audio Tech(Dongguan)Co.,Ltd /2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan, China (Applicant Name and address) Sincerely, Signature Name: Zhangchao Title: Manager Company: Zhizhen Audio Tech(Dongguan)Co.,Ltd Address: 2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan, China

2020-11-26 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AX6OMC2T Product Name: Wireless Microphone Model name: MC2T, MC2,MC2S,CM2,CM2S Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...)  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Sincerely, Signature Name: Zhangchao Title: Manager Company: Zhizhen Audio Tech(Dongguan)Co.,Ltd Address: 2F, No.45, Guanlong Rd, Baizhoubian Community, Dongcheng St, Dongguan, China

Page 1 of 4 Report No.: STS2010199 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: MC2T Photo 1 Photo 2 Page 2 of 4 Report No.: STS2010199 Photo 3 Photo 4 Page 3 of 4 Report No.: STS2010199 Photo 5 Photo 6 Page 4 of 4 Report No.: STS2010199 Photo 7

FCC Label 30mm*45mm Stickers, White font Wireless Microphone Model: MC2T FCC ID: 2AX6OMC2T

Page 1 of 3 Report No.: STS2010199 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: MC2T Photo 1 Photo 2 Antenna Page 2 of 3 Report No.: STS2010199 Photo 3 Photo 4 Page 3 of 3 Report No.: STS2010199 Photo 5

RF EXPOSURE EVALUATION METHOD FCC ID:2AX6OMC2T 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. Maximum measured transmitter power. The Worst Case Mode DQPSK Detector PEAK 499.1-509.1MHz 8±1dBm 487-497MHz 8±1dBm Remark: The worst case gain of the antenna is 0dBi. 0dBi logarithmic terms convert to numeric result is nearly 1. DQPSK 0.5091 8.192 9 7.94328235 1.1335 3 DQPSK 0.497 8.254 9 7.94328235 1.1200 3 Mode Limit Maximum Peak Conducted Output Power (dBm) frequency (GHz) Tune up Power(dBm) Tune up Power (mW) Result Threshold at which no SAR required is 1.1335≤ 3.0 for 1-g SAR, Separation distance is 5mm.

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:STS2010199W01 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: REALMIC Model Name: MC2T Series Model: MC2,MC2S,CM2,CM2S FCC ID: 2AX6OMC2T Test Standard: FCC Part 74 Rules S T L A B S Page 2 of 51 Report No.: STS2010199W01 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 ......................... : REALMIC Model Name ........................... : MC2T Series Model .......................... : MC2,MC2S,CM2,CM2S Test Standards ..................... : FCC Part 74 Rules Test Procedure ....................... : TIA-603-E 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 ....................... : 31 Oct. 2020 Date of performance of tests ................... : 31 Oct. 2020 ~ 20 Nov. 2020 Date of Issue ........................................... : 21 Nov. 2020 Test Result ............................................... : Pass Testing Engineer : (Chris Chen) Technical Manager : (Sean she) Authorized Signatory : (Vita Li) Page 3 of 51 Report No.: STS2010199W01 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 9 2.3 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 10 2.4 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 10 2.5 TEST EQUIPMENT 11 3. TEST METHODOLOGY 12 3.1 GENERAL TEST PROCEDURES 12 3.2 DESCRIPTION OF TEST MODES 12 3.3 FCC PART 15.205 RESTRICTED BANDS OF OPERATIONS 12 4. FCC PART 74 REQUIREMENTS 13 4.1 RADIATED SPURIOUS EMISSION 13 4.2 EMISSION MASK I 13 4.3 EMISSION MASK II 13 4.4 FREQUENCY STABILITY VS. TEMPERATURE & VOLTAGE 28 4.5 OCCUPIED BANDWIDTH 35 4.6 AUDIO FREQUENCY RESPONSE 40 4.7 MODULATION DEVIATION 43 4.8 RF OUTPUT POWER 46 PHOTOS OF TEST SETUP 51 Page 4 of 51 Report No.: STS2010199W01 Revision History Rev. Issue Date Report NO. Effect Page Contents 00 21 Nov. 2020 STS2010199W01 ALL Initial Issue Page 5 of 51 Report No.: STS2010199W01 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 NOTE: (1) “N/A” denotes test is not applicable in this Test Report. Page 6 of 51 Report No.: STS2010199W01 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 ±5.6dB 4 All emissions, radiated 1G-6GHz ±5.5dB 5 All emissions, radiated>6G ±5.8dB 6 Conducted Emission (9KHz-150KHz) ±3.37dB 7 Conducted Emission (150KHz-30MHz) ±3.83dB Page 7 of 51 Report No.: STS2010199W01 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name: Wireless Microphone Brand Name: REALMIC Model Name: MC2T Series Model : MC2,MC2S,CM2,CM2S Model Difference description: Only difference in model name Emission Bandwidth: 185.54KHz Battery: Rated Voltage:3.7V Charge Limit Voltage:4.2V Capacity: 1000mAh Operation Frequency Range Band A: 499.1 MHz- 509.1 MHz Band B: 487 MHz- 497 MHz Maximum Transmitter Power: 6.690 mW(8.254dBm) Modulation mode / type: DQPSK Frequency Tolerance 0.004179% Temperature Range: -30°C-50°C Test frequency list: See Note 4. Software…

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Page 1 of 2 FCC ID: 2AX6OMC2T TNT Setup photo Model Name: MC2T TNT radiation L TNT radiation H Page 2 of 2 FCC ID: 2AX6OMC2T TNT conduction