2BFCM-C20Smart watch

FCC Caution： This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

LEADOYS Technology (ShenZhen) Co., Ltd. 2024.03.22 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID: 2BFCM-C20 LEADOYS Technology (ShenZhen) Co., Ltd. certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Applicant signature: Applicant printed name: Fan zhijun LEADOYS Technology (ShenZhen) Co., Ltd. 2024.03.22 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID: 2BFCM-C20 LEADOYS Technology (ShenZhen) Co., Ltd. certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Applicant signature: Applicant printed name: Fan zhijun

LEADOYS Technology (ShenZhen) Co., Ltd. 2024.03.22 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Smart watch MODEL: C 20, C20PLUS, C20PRO FCC ID: 2BFCM-C20 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title: Fan zhijun / Project Manager Contact information / address: Room 505, Building B, Bantian International Center, Longgang, Shenzhen, China

LEADOYS Technology (ShenZhen) Co., Ltd. 2024.03.22 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature: Client’s name / title: Fan zhijun / Project Manager Contact information / address: Room 505, Building B, Bantian International Center, Longgang, Shenzhen, China

LEADOYS Technology (ShenZhen) Co., Ltd. Model Difference 2024-03-22 EUT NAME: Smart watch MODEL: C 20, C20PLUS, C20PRO All the model are the same circuit and RF module, except model names. Regards Sincerely Client’s signature: Client’s name / title: Fan zhijun / Project Manager Contact information / address: Room 505, Building B, Bantian International Center, Longgang, Shenzhen, China

External Photos

10*5mm Label Location FCC ID: 2BFCM-C20

Internal Photos Antenna

FCC ID: 2BFCM-C20 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR 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 When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion GFSK(1M bps) 2.480 4.35 2.724±15.003.16<50.995993.00YES GFSK(2M bps) 2.480 4.27 2.674±15.003.16<50.995993.00YES Conclusion: For the max result : 0.99599＜3, the SAR testing is not required.

天 线 测 试 报 告 test report 客 户： 乐戴 项 目 : C20 PULS 射 频： 姚工 日 期： 2024.03.11 版 本： 01 变更记录说明 时间版本说明 实 验 室 测 试 环 境 及 设 备 测试项目测试设备 S11、S12 、VSWR 、LOSS网络分析仪E5071B、E5062A Efficiency、Gain 3D Radiation Pattern Satimo SG16暗室、GP7*4*3暗室、E5071B TRP、TIS Satimo SG16暗室、GP7*4*3暗室、8960 、 CMW500、MT8820C、E4438C、 项 目 调 试 简 介 整机类型 手表 频段信息 天线形式 天线种类及 频段信息 天线 BT单极 天线材质导线 BT 天 线 匹 配 电 路 主天线 ElementValue附图说明 E1(0201) 主板原匹配 E2(0201) E3(0201) RF Module E1E3 Antenna E4E2 BT天 线 无 源 驻 波 BT天 线 无 源 效 率 BT 天 线 无 源 方 向 图 天 线 规 格 尺 寸 Unit：mm 射频 ：姚工 电话 ：15813831561 邮箱 ：[email protected] 地址 ：龙华区龙观大道440号龙城工业区御龙办公楼二楼 联 系 方 式 THE END

No.：BCTC/RF-EMC-005 Page: 1 of 53 Edition：B.1 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2403798054-2E Applicant: LEADOYS Technology (ShenZhen) Co., Ltd. Product Name: Smart watch Test Model: C 20 Tested Date: 2024-03-14 to 2024-03-20 Issued Date: 2024-03-21 Report No.: BCTC2403798054-2E No.：BCTC/RF-EMC-005 Page: 2 of 53 Edition：B.1 FCC ID: 2BFCM-C20 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: Smart watch Trademark: N/A Model/Type Reference: C 20 C20PLUS, C20PRO Prepared For: LEADOYS Technology (ShenZhen) Co., Ltd. Address: Room 505, Building B, Bantian International Center, Longgang, Shenzhen, China Manufacturer: LEADOYS Technology (ShenZhen) Co., Ltd. Address: Room 505, Building B, Bantian International Center, Longgang, Shenzhen, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2024-03-14 Sample Tested Date: 2024-03-14 to 2024-03-20 Issue Date: 2024-03-21 Report No.: BCTC2403798054-2E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is Bluetooth BLE radio test report. Tested by: Approved by: Eric Yang/Project Handler Zero Zhou/Reviewer Report No.: BCTC2403798054-2E No.：BCTC/RF-EMC-005 Page: 3 of 53 Edition：B.1 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List ........................................................................................................ 10 4.5 Test Mode ........................................................................................................... 10 4.6 Table of parameters of text software setting ....................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 13 6.1 Block Diagram Of Test Setup .............................................................................. 13 6.2 Limit .................................................................................................................... 13 6.3 Test procedure .................................................................................................... 13 6.4 EUT Operating Conditions .................................................................................. 13 6.5 Test Result .......................................................................................................... 14 7. Radiated Emissions ............................................................................................. 16 7.1 Block Diagram Of Test Setup .............................................................................. 16 7.2 Limit .................................................................................................................... 17 7.3 Test procedure .................................................................................................... 18 7.4 EUT operating Conditions ................................................................................... 19 7.5 Test Result .......................................................................................................... 19 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 24 8.1 Block Diagram Of Test Setup .............................................................................. 24 8.2 Limit .................................................................................................................... 24 8.3 Test Procedure ................................................................................................... 25 8.4 EUT Operating Conditions .................................................................................. 26 8.5 Test Result .......................................................................................................... 26 9. Power Spectral Density Test ............................................................................... 27 9.1 Block Diagram Of Test Setup .............................................................................. 27 9.2 Limit .................................................................................................................... 27 9.3 Test procedure .................................................................................................... 27 9.4 EUT Operating Conditions .................................................................................. 27 9.5 Test Re…

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Conducted emissions Radiated Measurement Photos