2BB2C-X20Smart Watch TWS Headset

FCC ID LABEL: Ca. 3mm x 10mm Label Location FCC ID: 2BB2C-X20

FCC RF Exposure EUT Description: Smart Watch TWS Headset Model No.: X20 FCC ID: 2BB2C-X20 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. test separation distance, mm)]ꞏ[√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 Frequency (MHz) Output power (dBm) Tune Up Power (dBm) Max Tune Up power dBm/mW Min test separati on distance mm Result Limit SAR Test Exclusion 2480 3.33 3±1(4) 2.512 5 0.791 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2408064448-E, antenna gain=2dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. The test exclusion threshold is 0.791 which is<= 3, SAR testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ꞏ[√f(GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 0.5mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300K) Engineering Specification DOCUMENT YF3216F8R2G4502 REV. NO. B PAGE 1 OF 10 3.2 x 1.6 x 0.5(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300K) Engineering Specification 1. Product Number 2. Features *Stable and reliable in performances *Low temperature coefficient of frequency *Low profile, compact size *RoHS compliance *SMT processes compatible (1)Product Type Chip Antenna (2)Size Code 3.6x1.2x0.5mm (3)Type Code F8 (4)Packing Paper bag packaging (5)Frequency 2.45GHz YF 3216 F8 R 2G4502 1 2 3 4 5 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 0.5mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300K) Engineering Specification DOCUMENT YF3216F8R2G4502 REV. NO. B PAGE 2 OF 10 3. Applications *Bluetooth earphone systems *Hand-held devices when WiFi /Bluetooth functions are needed, e.g., Smart phone. *IEEE802.11 b/g/n *ZigBee *Wireless PCMCIA cards or USB dongle 4. Description Ying feng chip antenna series are specially designed for WiFi/Bluetooth applications. Based on yingfeng proprietary design and processes, this chip antenna has excellent stability and sensitivity to consistently provide high signal reception efficiency. 5. Electrical Specifications (40 x 40 mm 2 ground plane) 5-1. Electrical Table Characteristics Specifications Unit Outline Dimensions 3.2x1.6x0.5 mm Working Frequency 2400~2500 MHz VSWR 2 Max. Impedance 50  Polarization Linear Polarization Gain Peak 2 (typical) dBi Efficiency 73 (typical) % 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 0.5mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300K) Engineering Specification DOCUMENT YF3216F8R2G4502 REV. NO. B PAGE 3 OF 10 5-2. Return Loss & VSWR Return Loss (S 11 ) Smith Chart(S 11 ) 6 Outline Dimensions of Antenna & Evaluation Board (unit: mm) 6-1. Antenna Dimensions Configuration and Dimensions: 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 0.5mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300K) Engineering Specification DOCUMENT YF3216F8R2G4502 REV. NO. B PAGE 4 OF 10 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 0.5mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300K) Engineering Specification DOCUMENT YF3216F8R2G4502 REV. NO. B PAGE 5 OF 10 7.Radiation Pattern (40x 40 mm 2 ground plane) 7-1. 3D Gain Pattern @ 2450 MHz Z X Y Y X Z 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 0.5mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300K) Engineering Specification DOCUMENT YF3216F8R2G4502 REV. NO. B PAGE 6 OF 10 、 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 0.5mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300K) Engineering Specification DOCUMENT YF3216F8R2G4502 REV. NO. B PAGE 7 OF 10 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 0.5mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300K) Engineering Specification DOCUMENT YF3216F8R2G4502 REV. NO. B PAGE 8 OF 10 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 0.5mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300K) Engineering Specification DOCUMENT YF3216F8R2G4502 REV. NO. B PAGE 9 OF 10 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOGYCO.,LTD Prepared by : harry Designed by : andy Checked by : andy Approved by：oliver TITLE：3.2x1.6 x 0.5mm) WiFi/Bluetooth Ceramic Chip Antenna (YF300K) Engineering Specification DOCUMENT YF3216F8R2G4502 REV. NO. B PAGE 10 OF 10

Page 1 of 42 Report No.: HK2408064448-E FCC Test Report Test report On Behalf of Shenzhen Youge Intelligent Co., Ltd For Smart Watch TWS Headset Model No.: X20 FCC ID: 2BB2C-X20 Prepared For : Shenzhen Youge Intelligent Co., Ltd Unit 702, unit 6, Taoyuanju 14 District, Taoyuan community, Xixiang street, Bao’an District, Shenzhen, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: Aug. 06, 2024 ~ Aug. 30, 2024 Date of Report: Aug. 30, 2024 Report Number: HK2408064448-E Page 2 of 42 Report No.: HK2408064448-E Test Result Certification Applicant’s name ................... : Shenzhen Youge Intelligent Co., Ltd Address .................................... : Unit 702, unit 6, Taoyuanju 14 District, Taoyuan community, Xixiang street, Bao’an District, Shenzhen, China Manufacturer's Name ............. : Shenzhen Youge Intelligent Co., Ltd Address .................................... : Unit 702, unit 6, Taoyuanju 14 District, Taoyuan community, Xixiang street, Bao’an District, Shenzhen, China Product description Trade Mark: callmusic Product name ............................. : Smart Watch TWS Headset Model and/or type reference .. : X20 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 ................ : Aug. 06, 2024 ~ Aug. 30, 2024 Date of Issue ............................................. : Aug. 30, 2024 Test Result ................................................. : Pass Testing Engineer : (Len Liao) Technical Manager : (Sliver Wan) Authorized Signatory : (Jason Zhou) Page 3 of 42 Report No.: HK2408064448-E Contents Page 1 Test Summary ................................................................................................................................................ 5 1.1 Test Description ......................................................................................................................................... 5 1.2 Measurement Uncertainty ......................................................................................................................... 6 1.3 Information of the Test Laboratory ............................................................................................................ 6 2 General Information ....................................................................................................................................... 7 2.1 General Description of EUT ...................................................................................................................... 7 2.2 Description of Test Conditions .................................................................................................................. 9 2.3 Description of Test Setup ........................................................................................................................ 10 2.4 Description of Support Units .................................................................................................................... 11 3 Equipments List for All Test Items ............................................................................................................. 12 4 Test Result .................................................................................................................................................... 13 4.1 Antenna Requirement.............................................................................................................................. 13 4.2 Conduction Emissions Measurement ...................................................................................................... 14 4.3 Radiated Emissions Measurement .......................................................................................................... 18 4.4 Maximum Output Power Measurement ................................................................................................... 27 4.5 Power Spectral Density ........................................................................................................................... 28 4.6 6db Bandwidth ......................................................................................................................................... 31 4.7 Occupied Bandwidth ................................................................................................................................ 33 4.8 Band Edge ............................................................................................................................................... 34 4.9 Conducted Spurious Emissions .............................................................................................................. 36 5 Test Setup Photo ......................................................................................................................................... 40 6 Photos of the EUT ........................................................................................................................................ 42 Page 4 of 42 Report No.: HK2408064448-E ** Modified History ** Revision Description Issued Data Remark Revision 1.0 Initial Test Report Release Aug. 30, 2024 Jason Zhou Page 5 of 42 Report No.: HK2408064448-E 1 Test Summary 1.1 Test Description Test Item Test Requirement Result Antenna Requirement §15.203/§15.247(b)(4) PASS Conducted Emission FCC Part 15.207 PASS…

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Test Model：X20 Radiated Emissions Conducted Emission