2BNP4-G300USmart Watch

Connecting device "Searching” Please put the device close to the phone as much as possible ****(ID-0294) MAC:78:02:b7:3F:02:94 ****(ID-0352) MAC:78:02:b7:3F:03:52 Model:**** MAC:78:02:b7 3F:02:94 Smart Watch G300U User Manual ON/OFF 1.When the watch is off, charge it or press and hold for 3 seconds. The bracelet vibrates to turn on: 2. Change to shutdown interface in start-up state, and have a long press on shutdown interface for 3 seconds to power off. BAND OPERATION HOW TO INSTALL APP （SKETCH MAP） Wireless connection:After successful pairing, APP will automatically save watch Wireless address. When APP is opened or operated in the background,it will automatically search and connect the watch. Data synchronization: Manually drop APP main page down to synchronize data; the watch can save offline date of 7 days. The date is more, the synchronization time will be longer. lt will take no more than 2 seconds to synchronize data. After synchronization, "synchronization finish" will be popped up. Scan the following QR code or downloads the "H Band " in application markets to install the paired APP. Demands on Device: IOS 9.0 or above; Android 5.0 or above. Scan QR code for download and installation "H Band" CONNECT WITH DEVICE Open the APP click "Device" "Add Device" "Select Device"，click the corresponding model, and follow the prompts to connect (see the operation Demands on Device: IOS 9.0 or above; Android 5.0 or above. Smart watch English User Manual 1.Slide to light up screen or change display in start-up state; 2. No operation default five-second screen, users can connect to the mobile APP to modify the screen time: 3.The factory default setting of the band (heart rate monitor for 24 hours). Users can turn on or off in the general settings of APP interface. -1- TRAINING Click to enter the sports interface, multiple sport modes, select a specific sports item, click to start monitoring after three seconds, press the upper comer button or slide to the right to pause, click " " to end. STATUS Change to the status interface to view the current step count, distance, and calorie status. The distance and calories are calculated and displayed according to the current walking steps, the height and weight set by the APP personally. WEATHER Change to the weather interface, you can view the weather and temperature conditions. LED FLASHLIGHT Pull down the screen on the main dial and click the flashlight icon to turn on the flashlight on the side of the watch. Avoid turning on the side light for a long time to extend battery life ALARM CLOCK Enter the alarm clock interface, you can add or delete alarm clocks.and you can set up to multi groups of alarm clocks,or APP side settings. MORE Stopwatch: Click to start timing, swipe to the right to exit back to the previous interface when the timing is stopped. Timer: Change to the timer interface, you can choose to set the time or add a custom time. Find a mobile phone: Change to the search interface, click to find a mobile phone in the connected state, and the mobile phone will send a ringtone to remind you. SET UP Watch face: Click this interface to change the watch face left and right, and click to select the watch face. Theme: Click this interface to choose from variety interaction modes. Brightness adjustment: Click to select different brightness, there are four levels of brightness. Bright screen duration adjustment: Click to select the bright screen duration, which are 5 seconds,10 seconds, and 15 seconds, or APP side settings. Sound setting: Click to enter the sound setting interface, you can choose to turn on or off the entertainment/call ringtone. About: Click this interface to view the firmware version number and Wireless address of the bracelet. Factory reset: Click this interface to choose factory reset (clear all data) or cancel. Shutdown: Click this interface to select shutdown or cancel shutdown. APP download: Click this interface, scan the QR code, and download the APP. -2- PRECAUTIONS Please prevent your watch from being shocked, or exposed under high temperature or blazing sun for a long time. Please don't disassemble, repair or change the device. The device should adopt current 0.5A to charge, it is forbidden to charge with over-voltage power supply. It should be used within the temperature of 0 degrees - 45 degrees. lt is forbidden to throw into fire, avoiding explosion. Please charge after drying the band with soft cloth, otherwise, it will corrode charging touch points, leading to charge fault. Please keep away from chemical substance such as gasoline, cleaning solvent, propanol, alcohol or insect repellent. Please don't use the product in high voltage and high magnetic environment. in case of sensitive dry skin or too- tight wearing, you may be uncomfortable. Please don't take a hot bath by wearing it. Please dry sweat in your wrist timely for its possibility to lead to skin itch or allergy by long-time touch with soap, sweat, allergens or contaminated ingredients.in case of frequent use, it is suggested to clean weekly. Please wipe with a damp cloth, and remove oil or dust by mild soap. Do not open more push without special requirements. COMMON PROBLEM How to do when it cannot connect with Wireless? (low speed/ failed to connect or reconnect) Please confirm whether your device is lOS9.0, Android 5.0 or above. lt takes time differently for each connection caused by the signal interference of wireless connection. lf it fails to connect for a long time，please confirm that you use it in environment without magnetic field or interference of multiple Wireless device . Turn on again after turning off the Wireless. Turn off the background applications of mobile phones or restart your mobile phones. Please don't make your mobile phones connect with other Wireless device or functions at the same time. Please check whether the APP is operated normally in the background. Otherwise, it may fail to connect. - 3- Information to User This device compl…

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Shenzhen Changtai Electronics Co.,Ltd Covered Equipment Certification Attestation Letter DATE: 09/04/2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA A TTN.: Reviewing Engineer FCC ID: 2BNP4-G300U Shenzhen Changtai Electronics 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 Changtai Electronics 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 Changtai Electronics 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: Wendy Feng Title: Product manager Company Name: Shenzhen Changtai Electronics Co.,Ltd Date: 09/04/2025

Shenzhen Changtai Electronics Co.,Ltd * the applicant must designate a contact located in the United States for purposes of acting as the appl icant’s agent for service of process, regardless of whether the applicant is a domestic or forei gn ent ity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 9/4/2025 TO : Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2BNP4-G300U FRN of applicant: 0036660769 Per section 2.911(d)(7) of the FCC rules, [ Shenzhen Changtai Electronics Co.,Ltd] (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: C ompany Name: FCC US Agent, LLC FCC Registration Number (FRN): 0033402884 Physical U.S. Company Address: 3722 Illinois Avenue, Saint Charles, IL 60174, USA Contact Person: Tim Payne Agent Email Address: [email protected] The abov e contact person accepts the obligation for service of process. The appl icant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. A pplicant Signed: Agent Signed (if different from Applicant): Signed: Printed name: Wendy Feng Title: Product manager Company Name: Shenzhen Changtai Electronics Co.,Ltd Date: 9/4/2025 S igned: Printed name: Tim Payne Title: Manager Company Name: FCC US Agent, LLC Date: 9/4/2025

Shenzhen Changtai Electronics Co.,Ltd Declaration on Model Differences We, Shenzhen Changtai Electronics Co.,Ltd 4/F, Building 17, Huafeng Manufacturing Zone, Wanle Road, Shajing, Baoan, Shenzhen, China Declare that the following product(s): Product Name: Smart Watch Model No.: G300U, G300S FCC ID: 2BNP4-G300U Utilize the identical circuit design, PCB layout, shielding, frame material and interface with (G300U), only differ in appearance materials, colors and model name. Therefore this application can be regarded as identical in performance to the submitted test sample. The manufacturer would take all the responsibilities for the above product(s). For and on behalf of Shenzhen, China Authorized person Location Name: Wendy Feng Position: Product manager Date of issue: 2025-0 9-0 4 *I hereby declare that I am entitled to sign on behalf of the applicant and that the information supplied is correct and complete.

DATE 09/04/2025 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: ___ 2BNP4-G300U ______ 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. Signed: Printed name: Wendy Feng Title: Product manager Company Name: Shenzhen Changtai Electronics Co.,Ltd Date: 09/04/2025

DATE: 09/04/2025 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen EU Testing Laboratory Limited (101, Building B1, Fuqiao Fourth Area, Qiaotou Community Fuhai Subdistrict Baoan District,Shenzhen,China) (Name of Agent company name and address) 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 Changtai Electronics Co.,Ltd (4/F, Building 17, Huafeng Manufacturing Zone, Wanle Road, Shajing, Baoan,Shenzhen,China ) (Applicant Name and address) Signed: Printed name: Wendy Feng Title: Product manager Company Name: Shenzhen Changtai Electronics Co.,Ltd Date: 09/04/2025

Date 09/04/2025 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, Signed: Printed name: Wendy Feng Title: Product manager Company Name: Shenzhen Changtai Electronics Co.,Ltd Date: 09/04/2025

Page 1 of 14 Report No.: 8333EU012206W-AB ANNEX B EXTERNAL PHOTOS (Model No.: G300U) PHOTO 1 PHOTO 2 Page 2 of 14 Report No.: 8333EU012206W-AB PHOTO 3 PHOTO 4 Page 3 of 14 Report No.: 8333EU012206W-AB PHOTO 5 PHOTO 6 Page 4 of 14 Report No.: 8333EU012206W-AB PHOTO 7 PHOTO 8 Page 5 of 14 Report No.: 8333EU012206W-AB PHOTO 9 PHOTO 10 Page 6 of 14 Report No.: 8333EU012206W-AB PHOTO 11 PHOTO 12 Page 7 of 14 Report No.: 8333EU012206W-AB PHOTO 13 PHOTO 14 Page 8 of 14 Report No.: 8333EU012206W-AB PHOTO 15 PHOTO 16 Page 9 of 14 Report No.: 8333EU012206W-AB (Model No.: G300S) PHOTO 17 PHOTO 18 Page 10 of 14 Report No.: 8333EU012206W-AB PHOTO 19 PHOTO 20 Page 11 of 14 Report No.: 8333EU012206W-AB PHOTO 21 PHOTO 22 Page 12 of 14 Report No.: 8333EU012206W-AB PHOTO 23 PHOTO 24 Page 13 of 14 Report No.: 8333EU012206W-AB PHOTO 25 PHOTO 26 Page 14 of 14 Report No.: 8333EU012206W-AB PHOTO 27 --- End ---

Label Location Label Size: 20mm*20mm FCC ID: 2BNP4-G300U

Page 1 of 3 Re port No.: 8333EU012206W-AC ANNEXC INTERNALPHOTOS PHOTO1 PHOTO2 BLE Antenna Page 2 of 3 Re port No.: 8333EU012206W-AC PHOTO3 PHOTO4 Page 3 of 3 Re port No.: 8333EU012206W-AC PHOTO5 PHOTO6 --- End ---

RF EXPOSURE EVALUATION FCC ID: 2BNP4-G300U According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b): Routine SAR evaluation refers to that specifically required by §2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to qualify for TCB approval. BLE: Channel (MHz) Maximum output power (dBm) Tune up tolerance (dBm) Max Tune Up Power (dBm) Distance (mm) Calculation results Limit Operating Mode 2402 1.62 1.62±1 2.62 5 0.567 3 BLE 1M 2440 2.43 2.43±1 3.43 5 0.688 3 2480 1.76 1.76±1 2.76 5 0.595 3 2402 1.61 1.61±1 2.61 5 0.565 3 BLE 2M 2440 2.41 2.41±1 3.41 5 0.685 3 2480 1.78 1.78±1 2.78 5 0.597 3 Test Results: PASS.

ShenzhenChangtaiFuyuanElectronicsCo.,LTD 3rdFloor,BuildingG,No.2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict,Shenzhen AntennaSpecification 1PRODUCTINFORMATION 1.1ManufacturerInformation Manufacturer ShenzhenChangtaiFuyuanElectronicsCo.,LTD Address 3rdFloor,BuildingG,No.2070,JinchengRoad,Haoxiang Community,ShajingStreet,BaoanDistrict,Shenzhen 1.2GeneralDescriptionforEquipmentunderTest(EUT) ModelNameUnder Test 2.4GBT-ANT AntennaType WireAntenna Dimensions 28mm±1*1mm±0.05 MAX.Gain-2.70dBi AntennaTypeWire 1.3TechnicalInformation Frequencies 2400~2500MHz TestFrequencies 2400MHz,2410MHz,2420MHz,2430MHz,2440MHz,2450MHz 2460MHz,2470MHz,2480MHz,2490MHz,2500MHz 1.4Antennasha Testedby:LuoYouningCheckedby:LiChenjiaApprovedby:SallyYu ShenzhenChangtaiFuyuanElectronicsCo.,LTD 3rdFloor,BuildingG,No.2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict,Shenzhen VSWR Frequency VSWR 2400MHz 1.57 2450MHz 1.76 2500MHz 1.93 ShenzhenChangtaiFuyuanElectronicsCo.,LTD 3rdFloor,BuildingG,No.2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict,Shenzhen 3DPattern B1.13DPatternfor2400MHz B1.23DPatternfor2450MHz ShenzhenChangtaiFuyuanElectronicsCo.,LTD 3rdFloor,BuildingG,No.2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict, Shenzhen B1.33DPatternfor2500MHz ShenzhenChangtaiFuyuanElectronicsCo.,LTD 3rdFloor,BuildingG,No.2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict,Shenzhen 1DRadiationPattern PHI=0 PHI=90 ShenzhenChangtaiFuyuanElectronicsCo.,LTD 3rdFloor,BuildingG,No.2070,JinchengRoad,HaoxiangCommunity,ShajingStreet,BaoanDistrict, Shenzhen THETA=90 Frequency(MHz)Gain(dBi)Efficiency(%) 2400-2.7018 2410-2.9217 2420-3.0717 2430-3.0916 2440-3.4815 2450-3.7315 2460-3.77 14 2470-3.8114 2480-3.6914 2490-3.9314 2500-4.1814 Antennasizediagram

Page 1 of 36 Report No.: 8333EU012206W-AD ANNEX D TEST DATA For Project No.: 8333EU012206W Client: Shenzhen Changtai Electronics Co.,Ltd Product Description: Smart Watch Model No.: G300U FCC ID: 2BNP4-G300U Technology: Bluetooth BLE Test Engineer: Test Date: 2025-08-29 Page 2 of 36 Report No.: 8333EU012206W-AD Test Summary Item Result Duty Cycle Pass Bandwidth Pass Maximum Conducted Output Power Pass Maximum Power Spectral Density Pass Unwanted Emissions In Non-restricted Frequency Bands Pass Page 3 of 36 Report No.: 8333EU012206W-AD 1. Duty Cycle 1.1 Test Result 1.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) T_on (ms) Period (ms) Duty Cycle (%) Duty Cycle Correction Factor (dB) Max. DC Variation (%) 1M SISO 2402 0.381 1.550 24.58 6.09 0.03 2440 0.381 1.550 24.58 6.09 0.03 2480 0.381 1.550 24.58 6.09 0.03 2M SISO 2402 0.196 0.925 21.19 6.74 0.01 2440 0.196 0.925 21.19 6.74 0.01 2480 0.196 0.925 21.19 6.74 0.01 Page 4 of 36 Report No.: 8333EU012206W-AD 1.2 Test Graph 1.2.1 Ant1 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 5 of 36 Report No.: 8333EU012206W-AD 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 6 of 36 Report No.: 8333EU012206W-AD 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 7 of 36 Report No.: 8333EU012206W-AD 2. Bandwidth 2.1 Test Result 2.1.1 OBW Mode TX Type Frequency (MHz) ANT 99% Occupied Bandwidth (MHz) Verdict Result Limit 1M SISO 2402 1 1.031 / Pass 2440 1 1.033 / Pass 2480 1 1.031 / Pass 2M SISO 2402 1 2.101 / Pass 2440 1 2.064 / Pass 2480 1 2.064 / Pass 2.1.2 6dB BW Mode TX Type Frequency (MHz) ANT 6dB Bandwidth (MHz) Verdict Result Limit 1M SISO 2402 1 0.683 >=0.5 Pass 2440 1 0.682 >=0.5 Pass 2480 1 0.674 >=0.5 Pass 2M SISO 2402 1 1.197 >=0.5 Pass 2440 1 1.192 >=0.5 Pass 2480 1 1.202 >=0.5 Pass Page 8 of 36 Report No.: 8333EU012206W-AD 2.2 Test Graph 2.2.1 OBW 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 9 of 36 Report No.: 8333EU012206W-AD 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 10 of 36 Report No.: 8333EU012206W-AD 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 11 of 36 Report No.: 8333EU012206W-AD 2.2.2 6dB BW 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 12 of 36 Report No.: 8333EU012206W-AD 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 13 of 36 Report No.: 8333EU012206W-AD 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 14 of 36 Report No.: 8333EU012206W-AD 3. Maximum Conducted Output Power 3.1 Test Result 3.1.1 Power Mode TX Type Frequency (MHz) Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit 1M SISO 2402 1.62 <=30 Pass 2440 2.43 <=30 Pass 2480 1.76 <=30 Pass 2M SISO 2402 1.61 <=30 Pass 2440 2.41 <=30 Pass 2480 1.78 <=30 Pass Page 15 of 36 Report No.: 8333EU012206W-AD 4. Maximum Power Spectral Density 4.1 Test Result 4.1.1 PSD Mode TX Type Frequency (MHz) Maximum PSD (dBm) Verdict ANT1 Limit 1M SISO 2402 0.75 <=8 Pass 2440 1.58 <=8 Pass 2480 0.95 <=8 Pass 2M SISO 2402 0.35 <=8 Pass 2440 1.18 <=8 Pass 2480 0.53 <=8 Pass Page 16 of 36 Report No.: 8333EU012206W-AD 4.2 Test Graph 4.2.1 PSD 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 17 of 36 Report No.: 8333EU012206W-AD 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 18 of 36 Report No.: 8333EU012206W-AD 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 19 of 36 Report No.: 8333EU012206W-AD 5. Unwanted Emissions In Non-restricted Frequency Bands 5.1 Test Result 5.1.1 Ref Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) 1M SISO 2402 1 0.77 2440 1 1.63 2480 1 0.97 2M SISO 2402 1 0.35 2440 1 1.18 2480 1 0.56 Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. 5.1.2 CSE Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) Limit (dBm) Verdict 1M SISO 2402 1 0.77 -19.23 Pass 2440 1 1.63 -18.37 Pass 2480 1 0.97 -19.03 Pass 2M SISO 2402 1 0.35 -19.65 Pass 2440 1 1.18 -18.82 Pass 2480 1 0.56 -19.44 Pass Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. Page 20 of 36 Report No.: 8333EU012206W-AD 5.2 Test Graph 5.2.1 Ref 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 21 of 36 Report No.: 8333EU012206W-AD 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 22 of 36 Report No.: 8333EU012206W-AD 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 23 of 36 Report No.: 8333EU012206W-AD 5.2.2 CSE 1M_LCH_2402MHz_Ant1_NTNV 1M_LCH_2402MHz_Ant1_NTNV Page 24 of 36 Report No.: 8333EU012206W-AD 1M_LCH_2402MHz_Ant1_NTNV 1M_LCH_2402MHz_Ant1_NTNV Page 25 of 36 Report No.: 8333EU012206W-AD 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 26 of 36 Report No.: 8333EU012206W-AD 1M_MCH_2440MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 27 of 36 Report No.: 8333EU012206W-AD 1M_MCH_2440MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV Page 28 of 36 Report No.: 8333EU012206W-AD 1M_HCH_2480MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV Page 29 of 36 Report No.: 8333EU012206W-AD 1M_HCH_2480MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV Page 30 of 36 Report No.: 8333EU012206W-AD 2M_LCH_2402MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 31 of 36 Report No.: 8333EU012206W-AD 2M_LCH_2402MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV Page 32 of 36 Report No.: 8333EU012206W-AD 2M_LCH_2402MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV Page 33 of 36 Report No.: 8333EU012206W-AD 2M_MCH_2440MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV Page 34 of 36 Report No.: 8333EU012206W-AD 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 35 of 36 Report No.: 8333EU012206W-AD 2M_HCH_2480MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV Page 36 of 36 Report No.: 8333EU012206W-AD 2M_HCH_2480MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV --------- End of Report -------

TEST REPORT Report No.: 8333EU012206W Applicant: Shenzhen Changtai Electronics Co.,Ltd Address: 4/F, Building 17, Huafeng Manufacturing Zone, Wanle Road, Shajing, Baoan, Shenzhen, China Product Name: Smart Watch Model No.: G300U (refer to clause 2.4) Trademark: OEM FCC ID: 2BNP4-G300U Test Standard(s): 47 CFR Part 15 Subpart C Test Result: Pass Date of Receipt: Aug. 22, 2025 Test Date: Aug. 22, 2025 – Sep. 01, 2025 Date of Issue: Sep. 02, 2025 ISSUED BY: SHENZHEN EU TESTING LABORATORY LIMITED Prepared by: Reviewed and Approved by: ____________________ _____________________ Mikey Zhu/ Engineer Sally Zhang/ Manager Page 2 of 33 Report No.: 8333EU012206W TRF No.: FCC Part 15 Subpart C_BLE (A02) Revision Record Report Version Issued Date Description Status V0 Sep. 02, 2025 Original Valid Page 3 of 33 Report No.: 8333EU012206W TRF No.: FCC Part 15 Subpart C_BLE (A02) Table of Contents 1 COVER PAGE .................................................................................................................................. 1 2 GENERAL INFORMATION ...................................................................................................................... 5 2.1 APPLICANT INFORMATION .................................................................................................................. 5 2.2 MANUFACTURER INFORMATION .......................................................................................................... 5 2.3 FACTORY INFORMATION ..................................................................................................................... 5 2.4 GENERAL DESCRIPTION OF E.U.T. ..................................................................................................... 5 2.5 TECHNICAL INFORMATION OF E.U.T. .................................................................................................. 6 3 TEST SUMMARY ...................................................................................................................................... 7 3.1 TEST STANDARD ............................................................................................................................... 7 3.2 TEST VERDICT ................................................................................................................................... 7 3.3 TEST LABORATORY ........................................................................................................................... 7 4 TEST CONFIGURATION .......................................................................................................................... 8 4.1 TEST ENVIRONMENT .......................................................................................................................... 8 4.2 TEST EQUIPMENT .............................................................................................................................. 8 4.3 DESCRIPTION OF SUPPORT UNIT ........................................................................................................ 9 4.4 TEST MODE ...................................................................................................................................... 9 4.5 DESCRIPTION OF CALCULATION ......................................................................................................... 9 4.6 MEASUREMENT UNCERTAINTY ......................................................................................................... 10 4.7 DEVIATION FROM STANDARDS ......................................................................................................... 10 4.8 ABNORMALITIES FROM STANDARD CONDITION ................................................................................. 10 5 TEST ITEMS ........................................................................................................................................... 11 5.1 ANTENNA REQUIREMENT .................................................................................................................. 11 5.1.1 Test Requirement ........................................................................................................... 11 5.1.2 Antenna Anti-Replacement Construction ........................................................................ 11 5.1.3 Antenna Gain .................................................................................................................. 11 5.2 CONDUCTED EMISSION AT AC POWER LINE ..................................................................................... 12 5.2.1 Test Requirement ........................................................................................................... 12 5.2.2 Test Setup Diagram ........................................................................................................ 12 5.2.3 Test Procedure ............................................................................................................... 12 5.2.4 Test Data......................................................................................................................... 12 5.3 DTS BANDWIDTH ............................................................................................................................ 12 5.3.1 Test Requirement ........................................................................................................... 15 5.3.2 Test Setup Diagram ........................................................................................................ 15 5.3.3 Test Procedure ............................................................................................................... 15 5.3.4 Test Data......................................................................................................................... 15 5.4 MAXIMUM CONDUCTED OUTPUT POWER .......................................................................................... 16 5.4.1 Test Requirement ................................................…

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Page 1 of 2 Re port No.: 8333EU012206W-AA ANNEXA TEST SETUPPHOTOS PHOTO1 Photoof PowerLine ConductedEmission Test PHOTO2 Photoof Radiated EmissionTest (Below1GHz) Page 2 of 2 Re port No.: 8333EU012206W-AA PHOTO3 Photoof Radiated EmissionTest (Above1GHz) --- End ---