2AUYFRMA205Bluetooth headset

The FCC ID of the earphone is FCC ID : 2AUYFRMA205

Realme Chongqing Mobile Telecommunications Corp., Ltd Agent Authorization Company: Realme Chongqing Mobile Telecommunications Corp., Ltd Address: No. 178 Yulong Avenue, Yufengshan, Yubei District, Chongqing, China Product Name: Bluetooth headset Model Number(s): RMA205 Product Description: True wireless earphone We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2020-06-24 Name: Yang Liangping Title: Manager Company: Realme Chongqing Mobile Telecommunications Corp., Ltd

RealmeChongqingMobileTelecommunicationsCorp.,Ltd. Date:05June,2020 To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 ToWhomItMayConcern: TheRealmeChongqingMobileTelecommunicationsCorp.,Ltd.,theundersigned,hereby authorizesMr.WuXuewenfromShenzhenBALUNTechnologyCo.,Ltd.,toactonthebehalfof theRealmeChongqingMobileTelecommunicationsCorp.,Ltd.solelyinmattersrelatingtothe applicationforanFCCequipmentauthorizationforFCCID:2AUYFRMA205includingthesigning ofdocumentsinconnectionwiththisApplication.NecessaryactscarriedoutbyShenzhen BALUNTechnologyCo.,Ltd.inconnectionwiththeApplicationshallhavethesameeffectas actsoftheRealmeChongqingMobileTelecommunicationsCorp.,Ltd. TheRealmeChongqingMobileTelecommunicationsCorp.,Ltd.alsoherebycertifythatno partytothisapplicationissubjecttoadenialofbenefits,includingFCCbenefits,pursuantto Section5301oftheAnti-DrugAbuseActof1988,21U.S.C.Section862. YoursSincerely, Printname:YangLiangping Title:Manager RealmeChongqingMobileTelecommunicationsCorp.,Ltd.

Realme Chongqing Mobile Telecommunications Corp., Ltd. Date: 05 June, 2020 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 RE:Realme Chongqing Mobile Telecommunications Corp., Ltd. FCC ID:2AUYFRMA205 FCC Certification Confidentiality Request Gentlemen: This letter is to comply with 47 CFR 0.457 and 0.459 pertaining to confidentiality material.Realme Chongqing Mobile Telecommunications Corp., Ltd.requests that the following documents regarding this submission for FCC ID :2AUYFRMA205be kept Long-Term confidential: Exhibit TypeFile Name Block DiagramBlock Diagram.pdf SchematicsSchematics.pdf Operational DescriptionOperational Description.pdf And below exhibit kept short-term confidential (180 days): Exhibit TypeFile Name External PhotosExternal Photo.pdf Internal PhotosInternal Photo.pdf Test Setup PhotosTest Setup Photos.pdf Users ManualsUsers Manual.pdf Those documents contain detailed system and equipment description and related information about the product whichRealme Chongqing Mobile Telecommunications Corp., Ltd.considers to be confidential proprietary, a custom design and, otherwise, not releasable to the general public. Since this design is a basis form which future technological products will evolve,Realme Chongqing Mobile Telecommunications Corp., Ltd.considers this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Thank you for your attention to this matter. Yours Sincerely, Print name: YangLiangping Title: Manager Realme Chongqing Mobile Telecommunications Corp., Ltd.

Annex No.: BL-SZ2060061-AW 1 / 4 EUT EXTERNAL PHOTOS FRONT VIEW OF EUT REAR VIEW OF EUT Annex No.: BL-SZ2060061-AW 2 / 4 LEFT SIDE VIEW OF EUT RIGHT SIDE OF EUT Annex No.: BL-SZ2060061-AW 3 / 4 TOP VIEW OF EUT BOTTOM VIEW OF EUT Annex No.: BL-SZ2060061-AW 4 / 4 Accessory-Charging Case

FCCID:2AUYFRMA205 TheFCCIDwillbeshowninusermanual.

Annex No.: BL-SZ2060061-AI 1 / 3 EUT INTERNAL PHOTOS EUT UNCOVER VIEW EUT UNCOVER VIEW Annex No.: BL-SZ2060061-AI 2 / 3 MAIN BOARD TOP VIEW MAIN BOARD REAR VIEW Ceramic Antenna RF Chip Annex No.: BL-SZ2060061-AI 3 / 3 Battery Photo (FRONT) c Battery Photo (REAR)

RF Exposure Evaluation for FCC ID: 2AUYFRMA205 Refer user manual this device is a Bluetooth headset, and this device was designed used in portable devices that the minimum distance between human’s body is 5mm. Based on the 47CFR 2.1093, this device belongs to portable device. The definition of the category as following: Portable Derives: CFR Title 47 §2.1093(b) (b) For purposes of this section, a portable device is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. FCC KDB 447498 D01 General RF Exposure Guidance v06 Limit Unless specifically required by the published RF exposure KDB procedures, standalone 1‐g head or body and 10‐g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source‐ based time‐averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune‐up tolerance, and the minimum test separation distance required for the exposure conditions. The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander. 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. Test data Bluetooth Mode BR+EDR BLE GFSK ∏/4-DQPSK8-DPSK GFSK (1Mbps) GFSK (2Mbps) Peak Power (dBm) 3.11 4.30 4.63 2.99 3.36 Note: This report listed the worst case peak power value, please refer to RF test report for more details. Turn-up power Mode Range (dBm) Bluetooth 2.00-5.00 FCC exclusion condition= [3.16 mW/5 mm] · [√2.48 GHz] = 1.00 ＜ 3.0 RF Exposure Evaluation Result: Pass Note: More power data, Please refer to the RF report.

Report No.: BL-SZ2060061-602 2 / 66 Revision History Version Issue Date Revisions Content Rev. 01 Jun. 23, 2020 Initial Issue TABLE OF CONTENTS 1 ADMINISTRATIVE DATA (GENERAL INFORMATION) .......................................................................... 5 1.1 Identification of the Testing Laboratory ....................................................................................... 5 1.2 Identification of the Responsible Testing Location ...................................................................... 5 1.3 Laboratory Condition ................................................................................................................... 5 1.4 Announce .................................................................................................................................... 5 2 PRODUCT INFORMATION ...................................................................................................................... 6 2.1 Applicant Information ................................................................................................................... 6 2.2 Manufacturer Information ............................................................................................................ 6 2.3 Factory Information ..................................................................................................................... 6 2.4 General Description for Equipment under Test (EUT) ................................................................ 6 2.5 Technical Information .................................................................................................................. 7 2.6 Additional Instructions ................................................................................................................. 8 3 SUMMARY OF TEST RESULTS .............................................................................................................. 9 3.1 Test Standards ............................................................................................................................ 9 3.2 Verdict ......................................................................................................................................... 9 4 GENERAL TEST CONFIGURATIONS ................................................................................................... 10 4.1 Test Environments .................................................................................................................... 10 4.2 Test Equipment List ................................................................................................................... 10 4.3 Measurement Uncertainty ......................................................................................................... 12 4.4 Description of Test Setup .......................................................................................................... 12 4.4.1 For Antenna Port Test ............................................................................................................... 12 4.4.2 For AC Power Supply Port Test ................................................................................................ 13 4.4.3 For Radiated Test (Below 30 MHz) ........................................................................................... 13 4.4.4 For Radiated Test (30 MHz-1 GHz) .......................................................................................... 14 4.4.5 For Radiated Test (Above 1 GHz) ............................................................................................. 14 4.5 Measurement Results Explanation Example ............................................................................. 15 4.5.1 For conducted test items: .......................................................................................................... 15 Report No.: BL-SZ2060061-602 3 / 66 4.5.2 For radiated band edges and spurious emission test: ............................................................... 15 5 TEST ITEMS ........................................................................................................................................... 16 5.1 Antenna Requirements .............................................................................................................. 16 5.1.1 Relevant Standards ................................................................................................................... 16 5.1.2 Antenna Anti-Replacement Construction .................................................................................. 16 5.1.3 Antenna Gain ............................................................................................................................ 16 5.2 Output Power ............................................................................................................................ 17 5.2.1 Test Limit ................................................................................................................................... 17 5.2.2 Test Setup ................................................................................................................................. 17 5.2.3 Test Procedure .......................................................................................................................... 17 5.2.4 Test Result ................................................................................................................................ 18 5.3 Occupied Bandwidth ................................................................................................................. 19 5.3.1 Limit ........................................................................................................................................... 19 5.3.2 Test Setup ................................................................................................................................. 19 5.3.3 Test Procedure ..................................…

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AnnexNo.:BL-SZ2060061-AR 1 / 4 TESTSETUPPHOTOS 1RadiatedTestPhoto Below30MHz 30MHz-1GHz AnnexNo.:BL-SZ2060061-AR 2 / 4 Close-up Above1GHz AnnexNo.:BL-SZ2060061-AR 3 / 4 Close-up 2ConductedTestPhoto ConductedTest-BT AnnexNo.:BL-SZ2060061-AR 4 / 4 3ConductedEmissions TestPhoto1 TestPhoto2