2AWEY-K3Wireless earphones

Co m Ad d Kon Pr o Mo d Pr o We act We an d issu our Sig Na m Title Com mpany: HO dress: Rm. g, China oduct Name del Numbe oduct Desc authorize M on our beha declare tha d certificatio ues concern behalf shal nature: me: e: mpany: HONG ONGKONG C 803, Cheval e: Wireless e er(s): K3, K3 ription: Wir MiCOM Lab alf on all ma at MiCOM L n of equipm ning the app ll have the s Robert Luo CEO HONGKON GKONG C Agen CHOICE ELE ier House, 4 earphones 3 Pro, i12, inP reless earph bs Inc., 575 atters conce Labs Inc. is ment to the r proval applic same effect o NG CHOICE CHOICE EL nt Auth ECTRONICS 5-51 Chath a Pods 12 ones Boulder C o erning the c allowed to f regulatory a cation. Any t as acts of ELECTRON LECTRON horizat CO., LTD am Road Sou ourt, Pleasa certification forward all i agencies as and all acts our own. NICS CO., LT ICS CO., L tion uth, Tsui Sha anton, Califo of above na information s required a s carried ou Date: TD LTD a Tsui, Kowlo ornia 94566 amed equip related to t nd to discu ut by MiCOM May. 13, 20 oon, Hong 6, USA, to pment. the approva ss any M Labs on 020 al

Office o Federa 7435 O Columb USA Subjec t FCC ID To Wh o Pursua are req u docume These d propriet might b It is ou r corresp docume authoriz Sincer e Signat u Name: Title: C of Engineeri l Communic Oakland Mills bia, MD 210 t; Request f D: 2AWEY- om It May C nt to the pro uesting the ents from pu documents tary informa be harmful to Schema Block D Parts Lis Operatio Tune-up r understand pondence du ents and thi zation is iss ely, ure: Robert Luo EO HONGK ing Techno cations Com s Road 046 for Confiden K3 Concern, ovisions of t Commissio ublic disclos contain det ation in ope o our comp atic Diagram iagram st onal Descri p Procedure ding that all uring the ce s informatio sued. o KONG CHO logy mmission ntiality the Commis on to withho sure indefin tailed syste ration of th e any and wo m ption e l measurem ertification re on will be av OICE ELEC ssion’s rule old the follow nitely. m and equi e equipmen ould give co ment test rep eview proce vailable for CTRONICS s Title 47 S wing attach pment desc nt. The publ ompetitors a ports, FCC ess cannot public revi e S CO., LTD Sections §0. hment(s) as criptions an ic disclosu r an unfair ad ID label for be granted ew once the D Date: May. 457 and §0 confidentia d are consi re of these d vantage in mat and as confide n e grant of eq 13, 2020 0.459, we al dered as documents the market . ntial quipment .

Model Difference Declaration To Whom It May Concern, We, HONGKONG CHOICE ELECTRONICS CO., LTD (Wireless earphones) Trademark:N/A; Model Number: K3, K3 Pro, i12, inPods 12 A ll model’s the function, software and electric circuit are the same, only with a product color and model named different for commercial purpose. Test sample model: K3 Please contact me if you have any question. Name: Robert Luo Date: May. 13, 2020 Title: CEO Signature of applicant:

Annex A External Photos Report No.:HK2004290877-1E/2E Page 1 of 4 Report No.:HK2004290877-1E/2E Page 2 of 4 Report No.:HK2004290877-1E/2E Page 3 of 4 Report No.:HK2004290877-1E/2E Page 4 of 4

FCC ID LABEL: Ca. 5mm x 10mm Label Locati on FCC ID: 2A WEY-K3

Annex B Internal Photo Report No.:HK2004290877-1E/2E Page 1 of 4 Report No.HK2004290877-1E/2E Page 2 of 4 Antenna Report No.HK2004290877-1E/2E Page 3 of 4 Report No.HK2004290877-1E/2E Page 4 of 4

FCC RF Exposure EUT Descrip tion: Wireless earphones Model No.: K3, K3 Pro, i12, inPods 12 FCC ID: 2AWEY‐K3 1. Limits According to KDB 447498 D01 General RF Exposure Guidance v06 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. te st separation distance, mm)]·[√ f(GHz)]≤3.0 for 1‐g SAR and ≤ 7.5 for 10‐g extremity SAR, Where: Result=P/D*√F F= the RF channel transmit frequency in GHz P=Maximum turn‐up power in mw D=Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation 2.4G Outp ut power （dBm） Tune Up Power （dBm） Max Tune Up power dBm/mW Min test separatio n distance mm Result Limit SAR Test Exclusion BT EDR 2441‐13.045 ‐14±1 ‐13/ 0.05 5 0.015462 3.0 Pass BLE 2440‐14.106 ‐15±1 ‐14/ 0.04 5 0.012496 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2004290877‐1E/2E, antenna gain=‐0.58dBi Pe r KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine RF Exposure test exclusion. The test exclusion threshold is 0.015462 which is<= 3, RF Exposure testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

Page 1 of 43 Report No.: HK2004290877-1E TEST REPORT FCC PART 15 SUBPART C 15.247 Test report On Behalf of HONGKONG CHOICE ELECTRONICS CO., LTD For Wireless earphones Model No.: K3, K3 Pro, i12, inPods 12 FCC ID: 2AWEY-K3 Prepared for : HONGKONG CHOICE ELECTRONICS CO., LTD Rm. 803, Chevalier House, 45-51 Chatham Road South, Tsui Sha Tsui, Kowloon, Hong Kong, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test: Apr. 30, 2020 ~ May. 09, 2020 Date of Report: May. 09, 2020 Report Number: HK2004290877-1E Page 2 of 43 Report No.: HK2004290877-1E TEST RESULT CERTIFICATION Applicant’s name ................. : HONGKONG CHOICE ELECTRONICS CO., LTD Address ................................. : Rm. 803, Chevalier House, 45-51 Chatham Road South, Tsui Sha Tsui, Kowloon, Hong Kong, China Manufacture's Name ............ : SHENZHEN CHOICE ELECTRONICS TECHNOLOGY CO., LTD Address ................................. : R1105 Dongfang Commercial Building, Baomin 2 Road, Xixiang, Ban'an, Shenzhen, China. Product description Trade Mark: N/A Product name ........................... : Wireless earphones Model and/or type reference : K3, K3 Pro, i12, inPods 12 Standards ............................. : 47 CFR FCC Part 15 Subpart C 15.247 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK 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. Date of Test ............................................ : Date (s) of performance of tests ............. : Apr. 30, 2020 ~ May. 09, 2020 Date of Issue ........................................... : May. 09, 2020 Test Result ............................................... : Pass Prepared by: Project Engineer Reviewed by: Project Supervisor Approved by: Technical Director Page 3 of 43 Report No.: HK2004290877-1E Table of Contents Page 1.1. TEST STANDARDS .....................................................................................................................................................5 1.2. TEST DESCRIPTION ........................................................................................................................................................ 5 1.3. TEST FACILITY .............................................................................................................................................................. 6 1.4. STATEMENT OF THE MEASUREMENT UNCERTAINTY ............................................................................................................... 6 2. GENERAL INFORMATION ....................................................................................................................................... 7 2.1. ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 7 2.2. GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 7 2.3. DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 8 2.4. EQUIPMENTS USED DURING THE TEST .............................................................................................................................. 9 2.5. RELATED SUBMITTAL(S) / GRANT (S) .............................................................................................................................. 10 2.6. MODIFICATIONS ......................................................................................................................................................... 10 2.7. DESCRIPTION OF TEST SETUP ................................................................................................................................ 10 3. TEST CONDITIONS AND RESULTS ......................................................................................................................... 11 3.1. CONDUCTED EMISSIONS TEST ....................................................................................................................................... 11 3.2. RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 14 3.3. MAXIMUM PEAK CONDUCTED OUTPUT POWER ............................................................................................................... 25 3.4. 20DB BANDWIDTH ..................................................................................................................................................... 26 3.5 FREQUENCY SEPARATION ..................................................................................................................................................... 29 3.5. NUMBER OF HOPPING FREQUENCY ................................................................................................................................. 31 3.6. TIME OF OCCUPANCY (DWELL TIME) .............................................................................................................................. 33 3.7. OUT‐OF‐BAND EMISSIONS ............................................................................................................................................ 36 3.8. PSEUDORANDOM FREQUENCY HOPPING SEQUENCE .......................................................................................................... 40 3.9. ANTENNA REQUIREMENT.................................................................................…

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Test Model：K3 Radiated Emission Conducted Emission