2ADM5-EP-0683BT IN EAR EARBUDS

APPLICATION DIAGRAM Bluetooth CPU Clock PLL26M KEYDSP ENGINE PMU Memory DAC&PA ADC 2402-2480MHz

Shenzhen Accurate Technology Co., Ltd. Project No.: RA221108-52273E-RF External Photos Page 1 of 6 External Photos Shenzhen Accurate Technology Co., Ltd. Project No.: RA221108-52273E-RF External Photos Page 2 of 6 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221108-52273E-RF External Photos Page 3 of 6 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221108-52273E-RF External Photos Page 4 of 6 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221108-52273E-RF External Photos Page 5 of 6 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221108-52273E-RF External Photos Page 6 of 6

NOV 16 2022Batch label_EP-0683 PO#5199: ZE121022 PO#5223: ZE010923

Shenzhen Accurate Technology Co., Ltd. Project No.: RA221108-52273E-RF Internal Photos Page 1 of 4 Internal Photos Shenzhen Accurate Technology Co., Ltd. Project No.: RA221108-52273E-RF Internal Photos Page 2 of 4 Shenzhen Accurate Technology Co., Ltd. Project No.: RA221108-52273E-RF Internal Photos Page 3 of 4 BT Antenna Shenzhen Accurate Technology Co., Ltd. Project No.: RA221108-52273E-RF Internal Photos Page 4 of 4

AB5616B 26MHz CircuitDescription 1.Battery(3.7V)providesenergyfortheBluetoothchip( ) ;Crystal oscillator()providestheclocksignalfortheBluetoothchip.Bluetoothsignals getthroughamatchingcircuit,andthentransmittedtothespacethroughthe antenna（2402MHz‐2480MHz）.Whentheproductisconnected,theproductcanbe intwo‐waycommunicationwithotherBluetoothdevices,andthenthedevice's BluetoothmodulesendsBluetoothsignalsintospace,theproductreceivesthe Bluetoothsignalthroughanantenna,transmissiontotheBluetoothchipvia matchingcircuit. Modulation Technique:

Shenzhen Accurate Technology Co., Ltd. Report No.: RA221108-52273E-RF Version 11: 2021-11-09 Page 10 of 58 FCC-BT FCC §1.1307 (b) & §2.1093 – RF EXPOSURE Applicable Standard According to FCC §2.1093 and §1.1307(b), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB 447498 D04 Interim General RF Exposure Guidance v01, clause 2.1.2 – 1- mW test Exemption: Per § 1.1307(b)(3)(i)(A), a single RF source is exempt RF device (from the requirement to show data demonstrating compliance to RF exposure limits, as previously mentioned) if the available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption applies to all operating configurations and exposure conditions, for the frequency range 100 kHz to 100 GHz, regardless of fixed, mobile, or portable device exposure conditions. This is a standalone exemption, and it cannot be applied in conjunction with any other test exemption. Test Result: For worst case: Mode Frequency Maximum Tune-up Conducted Power 1-mW test Exemption (MHz) (dBm) (mW) BDR/EDR 2402-2480 -4 0.398 Yes Note: The tune-up power was declared by the applicant. Result: Compliant.

B CHARGING BATUP MIC KEY LED AUDIO BT L L 3 1.5PL 4 NC L2 2.7NH Y1 26MHZ LED2 RED_LED LED1 BLUE_LED BT1 4.2V UPDATE VBAT GND 1 GND 2 5V B- B+ 1 0 V D D B T 7 V D D B T 8 P W R K E Y 5 LX 6 D G N D 4 VBAT 2 VUSB 1 8 D A C L 1 6 A D C 1 0 / M I C / P F 2 11 BT_OSCI 12 BT_OSCO 9 B T _ A N T 3 VDDIO 1 9 V D D D A C 1 AGND 0 RFGND 1 7 V C M B U F 2 0 V D D P A 13 ADC6/PB4 14 ADC5/PB3 15 ADC2/PA7 U1 AB5616 BT-ANT1 L+ L- L6 10R C2 NC L7 10R C1 NC C11 104 2 1 M2 C3 6K8 R2 2R2 K1 PWRKEY C15105 VDDIO VBAT VUSB CHRG_LED BLUE_LED/UPDATE V B A T VBAT GND BLUE_LED/UPDATE OSCO B T _ R F P W R K E Y V D D B T OSCI BLUE_LED/UPDATE CHRG_LED D A C L # D A C L M I C I N DACL DACL# VDDDAC MICIN VUSB PWRKEY V D D D A C D C B A 123456 A B C D 654321 Title File: Date: SizeNumber Sheet of Drawn By: Revision CHARGING BATUP MIC KEY LED 1.0 AUDIO BTR L 3 1.2PL 4 NC L2 4.3NH Y1 26MHZ LED2 RED_LED LED1 BLUE_LED BT1 4.2V UPDATE VBAT GND 1 GND 2 5V B- B+ 1 0 V D D B T 7 V D D B T 8 P W R K E Y 5 LX 6 D G N D 4 VBAT 2 VUSB 1 8 D A C L 1 6 A D C 1 0 / M I C / P F 2 11 BT_OSCI 12 BT_OSCO 9 B T _ A N T 3 VDDIO 1 9 V D D D A C 1 AGND 0 RFGND 1 7 V C M B U F 2 0 V D D P A 13 ADC6/PB4 14 ADC5/PB3 15 ADC2/PA7 U1 AB5616E2 BT-ANT1 L+ L- L6 10R C2 NC L7 10R C1 NC C11 104 2 1 M2 C3 6K8 R2 2R2 K1 PWRKEY C15105 VDDIO VBAT VUSB CHRG_LED BLUE_LED/UPDATE V B A T VBAT GND BLUE_LED/UPDATE OSCO B T _ R F P W R K E Y V D D B T OSCI BLUE_LED/UPDATE CHRG_LED D A C L # D A C L M I C I N DACL DACL# VDDDAC MICIN VUSB PWRKEY V D D D A C

Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. Shenzhen Accurate Technology Co., Ltd. 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. Shenzhen Accurate Technology Co., Ltd. 1/F., Building A, Changyuan New Material Port, Science & Industry Park, Nanshan District, Shenzhen, Guangdong, P.R. China Tel: +86 755-26503290 Fax: +86 755-26503396 Web: www.atc-lab.com Version 11: 2021-11-09 Page 1 of 58 FCC-BT TEST REPORT Applicant Name : Zeeva International Limited Address : Suite 1007B, 10th Floor, Exchange Tower, 33 Wang Chiu Road, Kowloon Bay, Hong Kong Report Number : RA221108-52273E-RF FCC ID: 2ADM5-EP-0683 Test Standard (s) FCC PART 15.247 Sample Description Product Type: BT IN EAR EARBUDS Test Model: EP-0683 Trade Mark: N/A Date Received: 2022-11-08 Date of Test: 2022-11-12 to 2022-11-15 Report Date: 2022-11-18 Test Result: Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Roger.Ling Candy Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: RA221108-52273E-RF Version 11: 2021-11-09 Page 2 of 58 FCC-BT 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 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 TEST EQUIPMENT LIST ........................................................................................................................................... 9 FCC §1.1307 (b) & §2.1093 – RF EXPOSURE ......................................................................................................... 10 APPLICABLE STANDARD ............................................................................................................................................ 10 TEST RESULT: ............................................................................................................................................................ 10 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 11 FCC §15.205, §15.209 & §15.247(d) – RADIATED EMISSIONS ........................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 EUT SETUP ................................................................................................................................................................ 12 EMI TEST RECEIVER & SPECTRUM ANALYZER SETUP .............................................................................................. 13 TEST PROCEDURE ...................................................................................................................................................... 13 FACTOR & MARGIN CALCULATION .............................................................................................…

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BT Audio Antenna Report 1.Gain and Efficiency Frequency E Total. dB(dBi) Efficiency 2402MHz 1.15 29% 2441MHz -0.40394 27% 2480MHz -1.27924 25% Model: RF-001 Manufacture: Shenzhen Yongtaisheng Electronic Technology Co., Ltd Antenna Max. Peak Gain ：1.15 dBi 2.VSWR Frequnce: VSWR 2.402Ghz 2.2510 2.441Ghz 2.6813 2.480Ghz 3.2046 Input impedance: 3.Radiation Pattern 2D phi = 0: 2D Phi = 90: 3D: 2.402G 2.441Ghz 2.480Ghz 3.Return Loss: 4.theta = 90:

Shenzhen Accurate Technology Co., Ltd. Project No.: RA221108-52273E-RF Test Photos Page 1 of 1 Radiated Spurious Emissions Test View (Below 1GHz) Radiated Spurious Emissions Test View (Above 1GHz)