2AB22-EFSC671Smart Fitness Scale with BLE

Smart Body Composition Scale User Manual Thank you for purchasing the Smart Fitness Scale by Etekcity. Questions or Concerns? Mon–Fri, 9:00 am–5:00 pm PST/PDT [email protected] • 1-855-686-3835 If you have any questions or concerns, please reach out to our helpful Customer Support Team at [email protected]. We hope you enjoy your new smart scale! 3 Table of ContentsSpecifications Name Smart Fitness Scale Model EFS-C671-WUST Weight Capacity 400 lb / 180 kg Weight Units lb / kg Platform Tempered Glass Battery 300mAh Li-ion Battery Input 5.0V 500mA (USB Type-C Charging) Dimensions 11.8 x 11.8 x 0.9 in / 30 x 30 x 2.4 cm Operating System iOS ® 12.0+ or Android™ 6.0+ Specifications Safety Information Function Diagram Display Diagram Display Messages VeSync App Setup Creating a User Using the Smart Scale Maintenance Troubleshooting Etekcity Limited Product Warranty Customer Support 3 4 5 6 6 7 8 9 10 11 15 17 Please read and follow all instructions and safety guidelines in this manual. WARNING: This scale uses a harmless electrical current to measure body fat. Consult a healthcare professional before using the smart scale if you use electronic medical equipment such as a pacemaker. READ AND SAVE THESE INSTRUCTIONS SAVE THESE INSTRUCTIONS Safety Information M E D I C A L GENERAL USE • Check the scale before using. Do not use the scale if it is damaged in any way. • Do not strike or bang on the scale. • Do not use the scale if there is a crack on the glass. While tempered glass is stronger and fractures more safely than ordinary glass, it may shatter unexpectedly after developing a slight crack. If you see a crack, contact Customer Support (see page 17). • The glass platform is slippery when wet. Always make sure the platform and your feet are dry before stepping on for measurement. • This scale should not be used to diagnose or treat any medical condition. • Scale data should not be used as a substitute for medical advice from a healthcare professional. • Place the scale on a hard, flat surface to avoid tipping. • To weigh safely and accurately, stand with your feet shoulder-width apart while on the scale. • Do not stand on the edge of the scale or jump on the scale. • Avoid standing on the scale for a long period of time, or when not measuring yourself. • Do not overload the scale. Maximum weight capacity is 400 lb / 180 kg. • Keep the scale in a cool area with low humidity. • Keep the scale away from heat sources, such as ovens or heaters. Avoid temperature fluctuations. • Store the scale in a horizontal position, not a vertical position. • Do not use while charging. Remove the charging cable before using. • This scale is not to be used by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. • Handle with care. • Not for commercial use. • Household use only. 5 Function Diagram A. Display B. Weighing Platform C. Conductive Areas D. Reset Button E. Anti-Skid Pads F. USB-C Charging Port G. Unit Button A B D F G E C Display Diagram Display Messages A. Bluetooth ® Icon B. Battery Icon C. Weight Units D. Weight Measurement A B D C Flashes when the scale needs to be charged. Flashes when Bluetooth is disconnected. Stays solid when connected. Weight exceeds 400 lb / 180 kg. Use a scale with a higher weight capacity. 7 1. To download the VeSync app, scan the QR code or search “VeSync” in the Apple App Store ® or Google Play Store. VeSync App Setup Note: • Please make sure your firmware and software are up to date. • The VeSync app is continually being improved and may change over time. If there are any differences, follow the in-app instructions. Note: • You can tap on the product categories to jump to different sections of the device list. • Make sure to choose the right device model (you can find it on the back of the scale) or it will lead to a connection failure. Note: • You can change the scale’s in-app name and icon at any time in the smart fitness scale settings. • When the scale display turns off, the scale’s Bluetooth will disconnect and go into auto-off mode. However, when the scale display lights up and the app is opened to the device page, the scale will reconnect to Bluetooth. 2. Open the VeSync app. Log In or Sign Up. 3. Follow the in-app instructions to set up your smart scale. 4. Tap + in the VeSync app. 5. Step on the scale and select your smart scale from the device list. 6. Follow the in-app instructions to complete setup. Creating a User If you are a new user, you will need to enter physical information before weighing yourself for the first time so the scale can calculate your body metrics. Follow the in-app instructions to create a user profile. Note: • Entering inaccurate information will make the scale’s measurements less accurate. • If you don’t identify with the available gender options, or are unsure, pick the option that you think best physically matches you. This choice is used for physical measurements, such as body fat percentages. • Children under 3 years of age cannot measure body metrics other than weight. • Minors will need a guardian’s consent to create a VeSync account. 9 Using the Smart Scale Note: If your smart scale is connected to the VeSync app, your results (such as BMI, Body Fat, etc.) will show in the app. SWITCHING UNITS Note: • Turning on Zero-Current Mode in the VeSync app will turn off the scale’s electrical current and will only provide measurements for weight and BMI. This mode can be helpful for users who are pregnant or who have implanted medical devices, such as pacemakers. • To measure your baby or pet, turn on Baby Mode and follow the in-app instructions for weighing. Baby Mode will not measure other body metrics and will only measure weight and BMI. Note: • Placing on soft surfaces such as shaggy carpet may cause inaccurate measurements or tippin…

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External Photos Page 1 of 3 Details of: External view Details of: External view External Photos Page 2 of 3 Details of: External view Details of: External view External Photos Page 3 of 3 Details of: External view Details of: External view

借(通)用件登记 技术要求： 1.要求符合包装指令 2.要求压线要清晰明显 3.啤盒后要求排干净废料 4.未标注公差按公差±0.2mm 环保属性：TPCH全套 TSCA 未 标 注 公 差 平面度 刀模 共 1 页 mm1:1A4 深圳市乐福衡器有限公司 Shenzhen Unique Electronic Weighing Apparatus Co.,Ltd. PACKAGING 平面 GRAPHIC TOTAL PAGE 第 1 页 PAGE 料号 PART NO. 图号 DRAWN NO. 零件名称 PART NAME 图幅 SIZE 比例 SCALE 单位 UNIT 视角 VIEWING ANGL 销售 SALES BOM 同轴度 0.20 ±0.05 材质/克重 工 艺 说 明 CF623 铭牌镭雕 / / / 工艺 成型外尺寸 厚度 湿度 颜色 重要等级 版本号修订说明日期签名 V1.0初版发行2025/1/14范莎莎 机密 描 图 描 校 旧底图总号 底图总号 签 字 日 期 镭雕 无边框 / 65*23mm 分类公差 ±0.5 ±3.0 ±1.0 ±5.0 ±1.0 说明书 外箱/平卡 彩盒/牛皮盒 CPE袋/PE袋 内托 65mm 23mm

Internal Photos Page 1 of 3 Details of: Internal view Details of: Internal view Internal Photos Page 2 of 3 Details of: Internal view Details of: PCB view Antenna location Internal Photos Page 3 of 3 Details of: PCB view Details of: PCB view

Report Number: 68.910.25.0001.01-S1 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, 518052, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 1 of 1 RF exposure test exclusion evaluation report Product: Smart Fitness Scale Model no.: EFS-C671-WUST, EFS-C671-xxxx(‘x’ can be A to Z and Blank, the 1st ‘x’ stands for different color; the 2nd and 3rd ‘x’ stands for different sales regions; the 4th ‘x’ stands for different sales channels) FCC ID: 2AB22-EFSC671 Rating: DC 5V, 500mA Battery type: DC 3.7V, 300mAh Li-ion battery RF Transmission Frequency: 2402MHz-2480MHz Modulation: GFSK Antenna Type: PCB antenna Max Antenna Gain: 2.6dBi Description of the EUT: The EUT is a Smart Fitness Scale, supports BLE-1Mbps/2Mbps function, operates at 2402 – 2480MHz. Reference Report 68.910.25.0001.01-S1 1. Limit and Guidelines on Exposure to Electromagnetic Fields According to §1.1307(b)(1), 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 D01 General RF Exposure Guidance v06, Mobile Portable RF Exposure, no SAR required if power is lower than the flowing threshold: 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)] [√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 calculation25 • The result is rounded to one decimal place for comparison • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion. 2. Calculation method [(max. power of` channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 Max Tune-up power = 2.6dBm=1.82mW Distance = 5 mm f = 2.480 GHz [1.82/5] * SQRT(2.480) =0.57 0.57≤ 3.0 Therefore, excluded from SAR testing. TUV SUD China, Shenzhen Branch Reviewed by: Prepared By: Jessie He/EMC Project Manager Myron Yu/EMC Project Engineer Date: 2025-02-18 Date: 2025-02-18

Etekcity Corporation 1775 FLIGHT WAY, SUITE 150 TUSTIN, CA 92782, USA 1. Antenna description: Manufacturer: Shenzhen Unique Scales Co., Ltd 301&601, no. 22, Huanping Road, Gaogiao Community, Pingdi, Longgang District, Shenzhen City, Guangdong Province, China Antenna model: CF623BLE Antenna type: PCB antenna Frequency range: 2400-2500MHz Antenna gain: 2.6dBi Maximum 2. Passive Test System Etekcity Corporation 1775 FLIGHT WAY, SUITE 150 TUSTIN, CA 92782, USA 3. RF ANT size 4. Matching Item NO.C19C20C21L7C16C17C18 ValueNC0RNC0RNC 10pF 10pF Material code Matching Component Etekcity Corporation 1775 FLIGHT WAY, SUITE 150 TUSTIN, CA 92782, USA 5. ANT Passive Test Results VNA Data Etekcity Corporation 1775 FLIGHT WAY, SUITE 150 TUSTIN, CA 92782, USA 6. Chamber Data Frequency (MHz) Spec (%)Spec (dB) Gain (dBi) Efficiency (%) Efficiency (dB) 240025-6.021.637.3-4.3 241025-6.021.537.4-4.3 242025-6.022.036.6-4.4 243025-6.022.435.9-4.4 244025-6.022.636.4-4.4 245025-6.022.536.8-4.3 246025-6.022.237.4-4.3 247025-6.021.837.2-4.3 248025-6.021.537.3-4.3 249025-6.021.236.5-4.4 250025-6.020.936.3-4.4 MIN25 -6.02 0.9335.91-4.45 MAX25-6.022.6237.44-4.27 AVG25-6.021.8436.82-4.34 Etekcity Corporation 1775 FLIGHT WAY, SUITE 150 TUSTIN, CA 92782, USA 3D Etekcity Corporation 1775 FLIGHT WAY, SUITE 150 TUSTIN, CA 92782, USA θ= 90°(XY Plane) Etekcity Corporation 1775 FLIGHT WAY, SUITE 150 TUSTIN, CA 92782, USA φ= 0°（XZ Plane） Etekcity Corporation 1775 FLIGHT WAY, SUITE 150 TUSTIN, CA 92782, USA φ= 90°(YZ Plane)

Report Number: 68.910.25.0001.01 EMC_SZ_FR_86.00 FCC BLE Release 2024-04-15 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 1 of 57 FCC - TEST REPORT Report Number : 68.910.25.0001.01 Date of Issue: 2025-02-18 Model/HVIN : EFS-C671-WUST, EFS-C671-xxxx(‘x’ can be A to Z and Blank, the 1st ‘x’ stands for different color; the 2nd and 3rd ‘x’ stands for different sales regions; the 4th ‘x’ stands for different sales channels) Product Type : Smart Fitness Scale Applicant : Etekcity Corporation Address : 1775 FLIGHT WAY, SUITE 150 TUSTIN, CA 92782, USA Manufacturer : Etekcity Corporation Address : 1775 FLIGHT WAY, SUITE 150 TUSTIN, CA 92782, USA Factory : Shenzhen Unique Scales Co., Ltd Address : 301&601, no. 22, Huanping Road, Gaogiao Community, Pingdi, Longgang District, Shenzhen City, Guangdong Province, China Test Result : ◼ Positive  Negative Total pages including Appendices : 57 Any use for advertising purposes must be granted in writing. This technical report may only be quoted in full. This report is the result of a single examination of the object in question and is not generally applicable evaluation of the quality of other products in regular production. For further details, please see testing and certification regulation chapter A-3.4. Report Number: 68.910.25.0001.01 EMC_SZ_FR_86.00 FCC BLE Release 2024-04-15 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 2 of 57 1 Table of Contents 1 Table of Contents ...................................................................................................................................................2 2 Details about the Test Laboratory ..........................................................................................................................3 3 Description of the Equipment Under Test ..............................................................................................................4 4 Summary of Test Standards ..................................................................................................................................5 5 Summary of Test Results .......................................................................................................................................6 6 General Remarks ...................................................................................................................................................7 7 Test Setups ............................................................................................................................................................8 7.1 Radiated test setups .......................................................................................................................................8 7.2 Conducted RF test setups ..............................................................................................................................9 7.3 AC Power Line Conducted Emission test setups ...........................................................................................9 8 Systems test configuration .................................................................................................................................. 10 9 Technical Requirement ....................................................................................................................................... 11 9.1 Conducted Emission .................................................................................................................................... 11 9.2 Conducted Output Power ............................................................................................................................ 14 9.3 6 dB Bandwidth ............................................................................................................................................ 17 9.4 Power spectral density ................................................................................................................................. 20 9.5 Spurious RF conducted emissions .............................................................................................................. 23 9.6 Band edge testing ........................................................................................................................................ 30 9.7 Spurious radiated emissions for transmitter ................................................................................................ 33 10 Test Equipment List ......................................................................................................................................... 55 11 System Measurement Uncertainty .................................................................................................................. 57 Report Number: 68.910.25.0001.01 EMC_SZ_FR_86.00 FCC BLE Release 2024-04-15 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 3 of 57 2 Details about the Test Laboratory Details about the Test Laboratory Test Site 1 Company name: TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Telephone: 86 755 8828 6998 Fax: 86 755 8828 5299 FCC Registration No.: 514049 FCC Designation Number: CN5009 Report Number: 68.910.25.0001.01 EMC_SZ_FR_86.00 FCC BLE Release 2024-04-15 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branc…

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Test Setup Photos Page 1 of 3 Conducted Emission test Radiated Emission test (9kHz to 30MHz) Test Setup Photos Page 2 of 3 Radiated Emission test (30MHz to 1000MHz) Radiated Emission test (1000MHz to 18000MHz) Test Setup Photos Page 3 of 3 Radiated Emission test (18000MHz to 26000MHz)