2ADM5-EP-0632-LBT TWS RHYTHM UPDATE

Dat To: Aut 743 We Pro Mo FCC For For Blu Exc mo ma com Sinc Sign Prin Tilt te: 2021/0 FEDERAL thorizatio 35 Oa klan e, Zeeva In oduct Nam ode l No : EP C ID: 2ADM r BT Mo de r Below ar et ooth BD cept for th odify/chan nufactur e mpliance w cerely You nature: nted Nam le: Vice Pr 01/18 COMMU n and Eva d Mills Ro nternation me: BT TW P‐0632 M5‐EP‐063 e: BL E 1M/ re activ a te DR(GF SK ) , he manufa nge the RF er’s respon with Comm urs, e: Aks hay residen t NICATION luation Di oad Colum nal Li mited WS RHYTHM 3 2‐L /2M are d ed: , EDR(π/4 acturer, th paramete nsibility to m ission’s y P Butani Zeeva Int Suite 1007 Road,Kow Tel: +852 E-mail: a NS COMMI ivision mbia, MD 2 d hereby d M UPDATE is able by ‐DQPSK), he en d use ers. We ac o pro vide t rules. ternational Lim 7B, 10th Floor wloon Bay, Ho 2-2868 0511 | akshay.butan ISSION 21046 declare th E software EDR(8DP er does no cknowledg the radio mited , Exchange To ng Kong Fax: +852-25 [email protected] hat： SK) ot have an ge that it configura ower, 33 Wang 524 1986 com y capabilit is the tions to e g Chiu ty to nsure

MCU BT-RF ANT BAT3.7V +DC5V Crystal Oscillator 24M MIC KEY LED AC6969 Bluetooth: 2402~2480MHz

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Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ201203835-RF Page 1 of 2 EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ201203835-RF Page 2 of 2

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ201203835-RF EXHIBIT A - FCC ID LABEL AND LOCATION FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ201203835-RF Page 1 of 4 EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ201203835-RF Page 2 of 4 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ201203835-RF Page 3 of 4 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ201203835-RF Page 4 of 4 Antenna BT Antenna

CircuitDescription The24MHZcrystaloscillatordrivesthebase. ThemodulationprovidedbyAC6969.TheoutputofAC6969modulehasthematching networkconsistingofthatlimittheharmoniccontentandeffecttheproper couplingoftheantennatotheoutputstage. Antenna,GroundandPowerSource Theantennaconsistsofa2.4GHz Thereisnoexternalgroundconnection.Thegroundisonlythatoftheprintedcircuitboard. Electriccurrentissuppliedbya3.7Voltprimarybattery Feature: FrequencyRange:2402MHz-2480MHz ModulationType:GFSK, π /4-DQPSK,8DPSK AntennaType: Crystal:24MHz PCB antenna PCB Antenna

C182.4NH L2ESD BT_OSCO 1 3 2 4 Y124M BT_OSCI L32.4NH BT_RF C8C9 BA_AVDD C16 +5VPWKEYBT_RF BT_OSCOBT_OSCIUSBDMUSBDPMICDACLDACR VCOM AK D3B LEDB/R AK D4R LEDR A 1 A4 A 1 A5 BAT+ C10 A 1 A3 DACR A 1 A2 DACL MIC C5 NC C4 NC +3V3 R11K +3V3 LEDB/R BAT+ A 1 A8 A 1 A9 +5V A 1 A7 USBDM A 1 A6 USBDP 1 2 MIC3MIC VDDIO 1 VBAT 2 LDOIN 3 BT_AVDD 4 PB3/ADC6 5 PB1/ADC5 6 BT_RF 7 VSSIO 8 BT_OSCI 9 BT_OSCO 10 ADC_11/DM 11 MIC/ADC10/DP 12 DACR 13 DACL 14 AGND 15 ADC1/MIC/PA1 16 IC1 K13.3*3.3*1.5 PWKEY ANT 12 P1CON2 12 D2 NC 12 D1 NC AC6969

Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. BACL is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. FCC PART 15.247 TEST REPORT For Zeeva International Limited Suite 1007B, 10th Floor, Exchange Tower, 33 Wang Chiu Road,Kowloon Bay, Hong Kong, China FCC ID: 2ADM5-EP-0632-L Report Type: Original Report Product Type: BT TWS RHYTHM UPDATE Re port Number: RSZ201203835-00 Re port Date: 2020-12-21 Reviewed B y: Nancy Wang RF Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ201203835-00 FCC Part 15.247 Page 2 of 52 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 SPECIAL ACCESSORIES ................................................................................................................................................. 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 6 EXTERNAL I/O CABLE .................................................................................................................................................. 6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 TEST EQUIPMENT LIST ........................................................................................................................................... 9 FCC§15.247 (i), §1.1307 (b) (1) &§2.1093 – RF EXPOSURE ...................................................................................... 10 APPLICABLE STANDARD ............................................................................................................................................ 10 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 11 FCC §15.207 (a) – AC LINE CONDUCTED EMISSIONS ..................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 EUT SETUP ................................................................................................................................................................ 12 EMI TEST RECEIVER SETUP ....................................................................................................................................... 12 TEST PROCEDURE ...................................................................................................................................................... 12 CORRECTED FACTOR & MARGIN CALCULATION ....................................................................................................... 13 TEST DATA ................................................................................................................................................................ 13 FCC §15.205, §15.209 & §15.247(d) – RADIATED EMISSIONS ........................................................…

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Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ201203835-RF EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions - Front View Conducted Emissions - Side View Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ201203835-RF Radiated Emissions View (Below 1 GHz) Radiated Emissions View (Above 1 GHz)