2BUIZ-B7Smart watch

Player Shutter Use the Touch Screen Phone Call Open the App and set up your profile Go to the [Device], Click [Add a Device] Choose your device on the scanning list Finish Heart Rate Test The Smart Watch can record your heart rate all day. You can also tap on the page to start measuring heart rate. Swipe Up Swipe Up Swipe Down Swipe Down Swipe Left Swipe Left Swipe Right Swipe Right CustomMenu Control Center Messages Water Intake Reminder Period Reminder The MAC address on the “ Setting”-”About” page could help you identify your device on the scanning list. After connecting your Smart Watch to the phone, you can use the watch to make outgoing calls and answer phone calls. Yo u can also view call history of th e watch. Yo u need to keep the connection between the watch and the phone stable when using the Phone Call function. Downloading the App Pairing Charging and Active Scan the following QR code to download and install the App. Scan QR Code and Download Blood Pressure SpO2 Test Tap on the blood pressure page to start measuring your blood pressure. On the blood pressure page, it will show blood pressure history of previous records. Tap the SpO2 page to start measuring your SpO2 levels.On the SpO2 page, It can show the SpO2 history previous records. Getting to Know Your Device General Info & Specifications FCC Warning Sports Training After connecting the device, you can remotely control the music player on your phone. Tap the training icon on the menu to start a new training session recording, There are 8 sport modes to be chosen. The last training recording will be shown on the training page. Sleep Remote ShutterOther Features Messages Reminder Weather If you keep wearing your Smart Watch while sleeping, it can measure the hours slept and quality of sleep statistics on both the screen and the App. After connecting the device, you can remotely control the camera on your phone. The device can sync incoming notifications from Twitter, Facebook, Whatsapp, Instagram & other Apps. Recent 5 messages can be stored. Other features include Stopwatch, Alarm, Timer, Word clock,Find phone, Settings,etc. The device will vibrate to remind you to take relaxation after 1 hour of sitting. 1.Using in Wet Conditions Your device is water-resistant, which means it is rain-proof and splash-proof and can withstand the sweatiest workout. 1.Environmental Conditions Operating temperature: 14°F to 122°F(-10°C to 50°C) Non-operating temperature: -4°F to 140°F(-20°Cto 60°C) 2.Wrist size Fits a wrist between 5.5 and 7.7 inches in circumference 3.Disposal and Recycling Please kindly be aware that it is the consumer's responsibility, to properly dispose and recycle the Smart Watch and accompanying components. Do not dispose the Smart Watch with common household waste, as it is considered electronic waste and should be disposed of at your local electronic equipment collection facility. For more information, please contact your local electronic equipment waste management authority or the retailer where you bought the product. The smart watch will remind you to drink Water at the planned intervals. Click on the menstrual period interface through the management cycle calendar to predict victory cycles. On the period reminder page, It can show the history of previous period reminder data. Weather data of current day and tomorrow can be viewed on the weather page. Weather data is synced after connecting with the App, it will not be updated after a long disconnected. Note: You can switch on/off the incoming notifications in the App. Note: You can switch the feature on/off in the APP. Note: You can set the feature in the APP. Note: Sleep stats reset to zero at 8:00 PM. Note: Your movement statistics reset to zero at midnight. Movement Reminder 2.Using Quick View With Quick View you can check the time or message from your phone on your Smart Watch without tapping. Just turn your wrist towards you and the time screen will appear for a few seconds. Charge the device fully to activate before first use. To charge your device, plug the charging cable into the adapter or USB port on your computer or wall. Safety warnings chemicals, including nearly evaporated liquified gases such as helium. Important Safety Information: Handle the Smart Watch with care. Do not use the Smart Watch if it is damaged. Batteries: Do not try to replace the battery of the Smart Watch by yourself. Charge: Charge the Smart Watch with the charging cable and a power adapter or a computer that meets relevant national, international and regional safety standards. Other adapters may not meet applicable safety standards and their use to charge the Smart Watch may present the risk of injury. Using damaged cables or chargers, or charging the device if they are wet, may cause fire, electric shock, injury, or damage to the watch or other belongings. Avoid prolonged exposure to heat, prolonged skin contact with the device, power adapter, charging cable and its connector, or the wireless charger when connected to a power source, as this may cause discomfort or injury. Choking hazard: The Smart Watch and its small parts included may present a choking hazard to small children or cause other injuries. Please keep away from children. Important Safety Information: Handle the Smart Watch with care. They contain sensitive electronic components, including batteries, and may malfunction, affect performance, or cause damage if dropped, burned, punctured, crushed, disassembled, or exposed to excessive heat, liquid, or high-pressure environments. concentrations of industrial including interference that may cause undesired operation. NOTE 1: 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 an…

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Shenzhen KM Brothers Technology Co., Ltd Covered Equipment Certification Attestation Letter 1/26/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2BUIZ-B7 Shenzhen KM Brothers Technology Co., Ltd (“the applicant”) 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Shenzhen KM Brothers Technology Co., Ltd (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Shenzhen KM Brothers Technology Co., Ltd (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: Lemon feng Title: Manager Company Name: Shenzhen KM Brothers Technology Co., Ltd Date: 1/26/2026

Shenzhen KM Brothers Technology Co., Ltd U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: January 26, 2026 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BUIZ-B7 Shenzhen KM Brothers Technology Co., Ltd(“the applicant”) certifies that, as of the date of the filing of the application, CLF Import and Export Limited (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. CLF Import and Export Limited ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name: CLF Import and Export Limited FRN: 0033489683 Address: 1312 17th Street #692, Denver, CO 80202, United States Signature: Contact Person: David Chen Tel: +1 949 254 2565 Email: [email protected] Applicant Shenzhen KM Brothers Technology Co., Ltd FRN: 0037900941 Address: 6th Floor, Building B, Jingfa Intelligent Manufacturing Park, Xiaweiyuan, Gushu Community, Xixiang Subdistrict, Bao'an District, Shenzhen, China Signature: Contact Person: Lemon feng Tel: +86-18211307641 Email: [email protected]

DATE: January 26, 2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen CCUT Quality Technology Co., Ltd. (1F, Building 35, Changxing Technology Indstrl Park Changzhen Community, Yutang Street,Shenzhen,China) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Shenzhen KM Brothers Technology Co., Ltd (6th Floor, Building B, Jingfa Intelligent Manufacturing Park, Xiaweiyuan, Gushu Community, Xixiang Subdistrict, Bao'an District, Shenzhen, China). <Signature> Name: Lemon feng Title: Manager Applicant Company: Shenzhen KM Brothers Technology Co., Ltd

Date: January 26, 2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLC 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). Sincerely, <Signature> Name: Lemon feng Title: Manager Company: Shenzhen KM Brothers Technology Co., Ltd

DATE: January 26, 2026 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2BUIZ-B7 Product Name: Smart watch Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...) • Schematics • Block diagram • Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name: Lemon feng Title: Manager Company: Shenzhen KM Brothers Technology Co., Ltd

Shenzhen KM Brothers Technology Co., Ltd Model Difference Statement DATE: January 26, 2026 FCC ID: 2BUIZ-B7 Dear Sir/Madam, Added models B5, B6, B8, B9, B10, K10, K11, K12, K13, K15, K16, K17, K18, K19s, K20, K21, K22, K23, K25, K26, K27, K28, K29, K30, K31, K32, K33, K35, K36, K37, K39, K50, K51, K52, K53, K55, K56, K57, K58, K59, K60, K61, K62, K63, K65, K66, K67, K68, K69, K70, KM10, KM11, KM12, KM13, KM13pro, KM15, KM15s, KM16, KM17, KM18, KM19, KM20, KM21, KM22, KM23, KM25, KM26, KM27, KM28, KM29 asis of the original product B7The color of appearance and model name of series models listed are different from the main model, but the circuit and the electronic construction are the same, as declared by the manufacturer. Sincerely, Name: Lemon feng Title: Manager Company name: Shenzhen KM Brothers Technology Co., Ltd Address: 6th Floor, Building B, Jingfa Intelligent Manufacturing Park, Xiaweiyuan, Gushu Community, Xixiang Subdistrict, Bao'an District, Shenzhen, China

Report No: SSP26010447-1E FCC ID: 2BUIZ-B7 Annex of Test Report Annex A. EUT External Photos Model: B7 EUT View 1 EUT View 2 Report No: SSP26010447-1E FCC ID: 2BUIZ-B7 Annex of Test Report EUT View 3 EUT View 4 Report No: SSP26010447-1E FCC ID: 2BUIZ-B7 Annex of Test Report EUT View 5 EUT View 6 Report No: SSP26010447-1E FCC ID: 2BUIZ-B7 Annex of Test Report EUT View 7

Report No: SSP26010447-1E FCC ID: 2BUIZ-B7 Annex of Test Report Annex D. Label and Information FCC Label Sample Label Size:1cm*0.5cm FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

Report No: SSP26010447-1E FCC ID: 2BUIZ-B7 Annex of Test Report Annex B. EUT Internal Photos Model: B7 EUT Internal View 1 EUT Internal View 2 Integral Antenna Report No: SSP26010447-1E FCC ID: 2BUIZ-B7 Annex of Test Report EUT Internal View 3

FCC ID: 2BUIZ-B7 RF Exposure Evaluation According to KDB 447498 D01 General RF Exposure Guidance v06 and part 2.1093，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 Here, The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. For BR+EDR Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit 2.98 2(±1) 3 1.995 2480 5 0.6283 3.0 So a SAR test is not required

Report No: SSP26010447-1E FCC Test Report Page 1 of 51 FCC TEST REPORT FCC ID: 2BUIZ-B7 Report No. : SSP26010447-1E Applicant : Shenzhen KM Brothers Technology Co., Ltd Product Name : Smart watch Model Name : B7 Test Standard : FCC Part 15.247 Date of Issue : 2026-01-20 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. Report No: SSP26010447-1E FCC Test Report Page 2 of 51 Test Report Basic Information Applicant..................................: Shenzhen KM Brothers Technology Co., Ltd Address of Applicant...............: 6th Floor, Building B, Jingfa Intelligent Manufacturing Park, Xiaweiyuan, Gushu Community, Xixiang Subdistrict, Bao'an District, Shenzhen, China Manufacturer..........................: Shenzhen KM Brothers Technology Co., Ltd Address of Manufacturer........: 6th Floor, Building B, Jingfa Intelligent Manufacturing Park, Xiaweiyuan, Gushu Community, Xixiang Subdistrict, Bao'an District, Shenzhen, China Product Name.........................: Smart watch Brand Name.............................: - Main Model..............................: B7 Series Models..........................: See section 1.1 (Page 5) Test Standard..........................: FCC Part 15 Subpart C ANSI C63.4-2014 ANSI C63.10-2020 Date of Test .............................: 2026-01-14 to 2026-01-17 Test Result...............................: PASS Tested By ................................: (Coke Huang) Reviewed By............................: (Lorzix Luo) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. Report No: SSP26010447-1E FCC Test Report Page 3 of 51 CONTENTS 1. General Information ....................................................................................................................................................5 1.1 Product Information .............................................................................................................................................5 1.2 Test Setup Information..........................................................................................................................................6 1.3 Compliance Standards ...........................................................................................................................................7 1.4 Test Facilities ........................................................................................................................................................7 1.5 List of Measurement Instruments ..........................................................................................................................8 1.6 Measurement Uncertainty .....................................................................................................................................9 2. Summary of Test Results ........................................................................................................................................... 10 3. Antenna Requirement ............................................................................................................................................... 11 3.1 Standard and Limit.............................................................................................................................................. 11 3.2 Test Result .......................................................................................................................................................... 11 4. Conducted Emissions ................................................................................................................................................ 12 4.1 Standard and Limit.............................................................................................................................................. 12 4.2 Test Procedure.................................................................................................................................................... 12 4.3 Test Data and Results .......................................................................................................................................... 13 5. Radiated Emissions ................................................................................................................................................... 16 5.1 Standard and Limit.............................................................................................................................................. 16 5.2 Test Procedure.................................................................................................................................................... 16 5.3 Test Data and Results .......................................................................................................................................... 18 6. Band-edge Emissions(Radiated) ............................................................................................................................... 22 6.1 Standard and Limit.............................................................................................................................................. 22 6.2 Test Procedure.................................................................................................................................................... 22 6.3 Test Data and Results ............................................................................…

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Shenzhen Yixiantong Cable Co., Ltd. Address: Building 21, Wanfeng 98 Industrial Zone, Shajing Subdistrict, Bao'an District, Shenzhen City 天线规格承认书 Antenna Specification for Approval 客户名称 CustomerName：Shenzhen Mobang Technology Co., Ltd. 产品名称： ProductName：2.4G antenna, total length 25mm, red color 客户型号： ProductName: 产品料号： Part NO.: C10- 35- 2.5 制 表 ： WriteBy：Zhuang Jiebin 日 期： IssuedDate: 2021- 10-08 Customer: 工程R& D Dept 采购Business Dept 承认 Approved By One-lineCommunication 研发R& D Dept 工程 Engineer Dept 审核 Approval Zhuang Caihong Zhuang Jiebin Zhuang Jiebin Product Specification A. ElectricalCharacteristics Frequency 2400MHz ~2500MHz VSWR<3.0 Efficiency >30% Impedance 50 Ohm Polarization Line Gain : 0.17dBi B. Material & MechanicalCharacteristics Material of Radiator Cu Cable Type 1.0 19P Connector Type : NO Dimension C. Environmental Operation Temperature - 30 °C ~ + 80 ° CStorage Temperature - 30 ° C~+ 85 °C Test Equipment & Conditions 1. NetworkAnalyzers: Agilent 8753D 5071C 2. Communications TestSet: Agilent E5525C 3. 3D Chamber TestSystem Effiency& Gain Radiation Pattern:

Report No: SSP26010447-1E FCC ID: 2BUIZ-B7 Annex of Test Report Annex C. Test Photos Conducted Emission Test View 1 Radiated Emission Test View Below 1GHz Report No: SSP26010447-1E FCC ID: 2BUIZ-B7 Annex of Test Report Radiated Emission Test View Above 1GHz