2AV7N-DWMLM100Donner Lavalier Microphone 100

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GUANGZHOURANTIONTECHNOLOGYCO., LTD. 2022-11-11 FederalCommunicationsCommission Authorization& EvaluationDivision 7345 OaklandMills Road Columbia,Maryland21046 Authorityto Act asAgent On our behalf,I appointSHENZHENTONGCETESTINGLAB / 2101 & 2201, Zhenchang FactoryRenshanIndustrialZone,FuhaiSubdistrict,Bao'anDistrict,Shenzhen, Guangdong,518103,People's Republicof China(Nameof Agentcompanyname and address)to act as our agentin the preparationof this applicationfor equipment certification.I certifythat submitteddocumentsproperlydescribethe deviceor systemfor whichequipmentcertificationis sought.I also certifythat each unit manufactured, importedor marketed,as definedin the FederalCommunicationsCommission’s regulationswill have affixedto it a label identicalto that submittedfor approvalwith this application. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonourbehalf,Iack nowledgethat all responsibilityfor complyingwith the terms and conditionsfor certification,still resideswith GUANGZHOURANTIONTECHNOLOGYCO., LTD. / Room7002 and 7003, 7th Floor, DigitalEntertainmentIndustrialPark, GreaterBay Area, No. 28 HuangpuPark West Road,HuangpuDistrict,Guangzhou,China(ApplicantName and address) <Signature> Name : Alan Xiang Title : CertificationManager ApplicantCompany: GUANGZHOURANTIONTECHNOLOGYCO., LTD.

GUANGZHOU RANTION TECHNOLOGY CO., LTD. 2022-11-11 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AV7N-DWMLM100 Product Name: Donner Lavalier Microphone 100 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: •Schematics •Block diagram •Operation description Thesematerialscontaintradesecretsand proprietaryinformationand are not customarilyreleasedto the public.The publicdisclosureof this informationmight be harmfulto the companyand provideunjustifiedbenefitsto our competitors. <Signature> Name : Alan Xiang Title : CertificationManager Company: GUANGZHOURANTIONTECHNOLOGYCO., LTD.

ANTENNA SPECIFICATION Shenzhen Feimin Technology Co.,Ltd 2 SUPPLIER PREPARED BY CHECKED BY APPROVED BY 杨轩 夏兴喜 马冬冬 CUSTOMER ACCEPTED BY CHECKED BY APPROVED BY 方宇 张义 洪金聪 ShenZhen City FeiMin Technology CO.,LTD. SPECIFICATION FOR APPROVED CUSTOMER:FUZHOU KINGWAY INFORMATION TECHNOLOGY CO., LTD PRODUCTS: 2.4G Antenna PARTNO: Spec.: FM-S2276-BKB-L10 Data: 2022.10.14 REMARK:Pleasesendusone(orcopy)ofthisapprovalwithstampafteraccepting,othercopiesfiledby thecustomer. ADD:Room 303,Building C,Hengnan one Road,Gushu community,Xixiang Street,Bao’an District,Shenzhen City Tel:0755-23035723 Fax:0755-23036702 E-mail:[email protected] HTTP:www.fmant.cn Shenzhen Feimin Technology Co.,Ltd 3 ANTENNA SPECIFICATION 1. ProjectInformation 1.1. AppearanceandDimensions Shenzhen Feimin Technology Co.,Ltd 4 ANTENNA SPECIFICATION 2. ElectricalCharacteristics 2.1. TestEnvironment Conditions Temperature Ordinary Temperature (5 to 35°C) Humidity Ordinary Humidity (25 to 85% RH) 2.2. Measurement method 2.2.1. AntennaVSWR Shenzhen Feimin Technology Co.,Ltd 5 ANTENNA SPECIFICATION 2.2.2. AntennaReturnloss 2.3. Antennapassivetestdata 2.3.1. Testsystem Shenzhen Feimin Technology Co.,Ltd（24 probe OTA microwave anechoic chambe） Shenzhen Feimin Technology Co.,Ltd 6 ANTENNA SPECIFICATION 2.3.2Antennaefficiencyandgain Frequency (MHz) Gain (dBi) Efficiency (%) 2400 MHz 1.27 35.24 2410 MHz 1.32 35.88 2420 MHz 1.41 36.84 2430 MHz 1.51 37.1 2440 MHz 1.64 37.53 2450 MHz 1.63 37.71 2460 MHz 1.72 40.98 2470 MHz 1.84 37.07 2480 MHz 1.86 35.01 2490 MHz 1.78 36.23 2500 MHz 1.59 37.68 2.3.2. AntennaRadiationPattern XOY-plane@2450MHz YOZ-plane@2450MHz XOZ-plane@2450MHz 3D-plane @2450MHz Shenzhen Feimin Technology Co.,Ltd 7 ANTENNA SPECIFICATION 3. Notes 1. Pay attention not to be too close to the metal part during installation to avoid affecting the performance of the antenna. 2, this type of antenna is only applicable to this type, the position of the antenna can not be changed at will 3. The data used in this Spec. is measured in the lab of Shenzhen Feimin Technology Co., LTD

Page 1 of 4 Appendix B: Photographs of EUT Product: Donner Lavalier Microphone 100 Model: DWM-LM100 External Photos Page 2 of 4 Page 3 of 4 Page 4 of 4

LabelArtworkandLocation Model:DWM-LM100 Label: Thelabelisreflectedintheusermanual

Page 1 of 3 Appendix B: Photographs of EUT Product: Donner Lavalier Microphone 100 Model: DWM-LM100 Internal Photos Page 2 of 3 Antenna Page 3 of 3

RF Exposure evaluation According to 447498 D04 Interim General RF Exposure Guidance v01 eirp = pt x gt = (EXd) 2 /30 where: pt = transmitter output power in watts, gt = numeric gain of the transmitting antenna (unitless), E = electric field strength in V/m, --- 10 ((dBuV/m)/20) /10 6 d = measurement distance in meters (m)---3m Sopt = (EXd) 2 /30 x gt Ant gain = 1.86 dBi(1.535) [-0.29dBd(0.9354) ] Field strength = 91.13 dBμV/m @3m @2480MHz So Pt={ [10 (91.13 /20) /10 6 x3] 2 /(30X1.535)}x1000 mW =0.2535mW So ERP=0.2535x0.9354=0.2371 So worse case： 0.2535<2.7657mW Then SAR evaluation is not required

Acc eir whe pt gt E = d = Sop Ant Fie So So So w 0.2 The ording to p = pt x re: = transmi = numeri c = electric = measurem t = (EXd) t gain = eld stre Pt={ [1 ERP=0.2 worsecas 2535<2.7 n SAR eva o 447498 D gt = (EXd tter outp c gain of c field st ment dista 2 /30 x gt =1.86dBi( ngth =91 0 (91.13/20) 535x0.93 e： 657mW aluation i RF Expo D04 Interi d) 2 /30 put power the tran s trength in ance in me (1.535)[ 1.13dBμV /10 6 x3 354=0.23 is not req osure eval im General in watts, smitting a n V/m, --- eters (m)- -0.29dBd V/m @3m@2 3] 2 /(30X1 371 quired luation l RF Expos antenna (u - 10 ((dBuV ---3m d(0.9354 2480MHz 1.535)}x1 sure Guida unitless), V/m)/20) /10 6 4) ] 1000 mW ance v01 =0.2535m mW

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID. ............................ : 2AV7N-DWMLM100 Test Report No. ............... : TCT221019E003 Date of issue ................... : Nov. 07, 2022 Testing laboratory .......... : SHENZHEN TONGCE TESTING LAB Testing location/ address: 2101 & 2201, Zhenchang Factory Renshan Industrial Zone, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, 518103, People's Republic of China Applicant's name ............ : GUANGZHOU RANTION TECHNOLOGY CO., LTD. Address ........................... : Room 7002 and 7003, 7th Floor, Digital Entertainment, Industrial Park, Greater Bay Area, No.28, Huangpu Park West Road, Huangpu District, Guangzhou, China Manufacturer's name ... : GUANGZHOU RANTION TECHNOLOGY CO., LTD. Address ........................... : Room 7002 and 7003, 7th Floor, Digital Entertainment, Industrial Park, Greater Bay Area, No.28, Huangpu Park West Road, Huangpu District, Guangzhou, China Factory's name ............. : FUZHOU KINGWAY INFORMATION TECHNOLOGY CO., LTD Address ........................... : 2nd Floor, Building 69, Area A, Pushang Industrial Park, Jinshan Industrial Concentration Area, No.1, Hongjiang Road, Jianxin Town, Cangshan District, Fuzhou, Fujian, China Standard(s) ..................... : FCC CFR Title 47 Part 15 Subpart C Section 15.249 ANSI C63.10:2013 Product Name ................. : Donner Lavalier Microphone 100 Trade Mark ...................... : Donner Model/Type reference..... : DWM-LM100 Rating(s).......................... : Refer to model list of page 3 Date of receipt of test item ......................................... : Oct. 19, 2022 Date (s) of performance of test ................................... : Oct. 19, 2022 - Nov. 07, 2022 Tested by (+signature) ... : Onnado YE Check by (+signature) .... : Beryl ZHAO Approved by (+signature): Tomsin General disclaimer: This report shall not be reproduced except in full, without the written approval of SHENZHEN TONGCE TESTING LAB. This document may be altered or revised by SHENZHEN TONGCE TESTING LAB personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT221019E003 Page 2 of 36 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Table of Contents 1. General Product Information .................................................................. 3 1.1. EUT description ..................................................................................................... 3 1.2. Model(s) list ............................................................................................................ 3 1.3. Operation Frequency ............................................................................................ 4 2. Test Result Summary .............................................................................. 5 3. General Information ................................................................................. 6 3.1. Test Environment and Mode ................................................................................. 6 3.2. Description of Support Units ................................................................................ 6 4. Facilities and Accreditations .................................................................. 7 4.1. Facilities ................................................................................................................. 7 4.2. Location ................................................................................................................. 7 4.3. Measurement Uncertainty ..................................................................................... 7 5. Test Results and Measurement Data ..................................................... 8 5.1. Antenna Requirement ........................................................................................... 8 5.2. Conducted Emission ............................................................................................. 9 5.3. Radiated Emission Measurement ...................................................................... 13 5.4. 20dB Occupied Bandwidth ................................................................................. 25 Appendix A: Photographs of Test Setup Appendix B: Photographs of EUT Report No.: TCT221019E003 Page 3 of 36 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. General Product Information 1.1. EUT description Product Name ....................... : Donner Lavalier Microphone 100 Model/Type reference........... : DWM-LM100 Sample Number....................: TCT221019E003-0101 Operation Frequency ........... : 2402MHz~2480MHz Number of Channel .............. : 79 Modulation Technology ....... : GFSK Antenna Type ........................ : Internal Antenna Antenna Gain ........................ : 1.86dBi Rating(s)................................ : Input: DC 5V Rechargeable Li-ion Battery DC 3.7V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. 1.2. Model(s) list None. Report No.: TCT221019E003 Page 4 of 36 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1.3. Operation Frequency Channel Frequency Channel Frequency Channel Frequency Channel Frequency 0 2402MHz 20 2422MHz 40 2442MHz 60 2462MHz 1 2403MHz 21 2423MHz 41 2443MHz 61 2463MHz 2 2404MHz 22 2424MHz 42 2444MHz 62 2464MHz 3 2405MHz 23 2425MHz 43 2445MHz 63 2465MHz 4 2406MHz 24 2426MHz 44 2446MHz 64 2466MHz 5 2407MHz 25 2427MHz 45 2447MHz 65 2467MHz 6 2408MHz 26 2428MHz 46 2448MHz 66 2468MHz 7 2409MHz 27 2429MHz 47 2449MHz 67 2469MHz 8 2410MHz 28 2430MHz 48 2450MHz 68 2470MHz 9 2411MHz 29 2431MHz 49 2451MHz 69 2471MHz 10 2412MHz 30 2432MHz 50 2452MHz 70 2472MHz 11 2413MHz 31 2433MHz 51 2453MHz 71 2473MHz 12 2414M…

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Page 1 of 2 Appendix A: Photographs of Test Setup Product: Donner Lavalier Microphone 100 Model: DWM-LM100 Radiated Emission Page 2 of 2 Conducted Emission