2BE9U-HD8ULTRASmart Watch

FCC Warnning for Bluetooth: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuan t to part 15 of the FCC Rules. These limits are designed to provide reasonable protection againstharmful interference in a residential installation. This equipment generates, uses and can radiateradio frequency energy and, if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterferenc e to radio or television reception, which can be determined by turning the equipmentoff and on, the user is encouraged to try to correct the interference by one or more of thefollowing 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. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. 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. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 0cm between the radiator and your body.

FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Appendix III EUT External Photographs Photo 1 Appearance of EUT Photo 2 Appearance of EUT FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Photo 3 Appearance of EUT Photo 4 Appearance of EUT FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Photo 5 Appearance of EUT Photo 6 Appearance of EUT

FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Appendix I Label Appendix II Label Location FCC ID: 2BE9U-HD8ULTRA Model: HD8ultra

FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Appendix IV EUT Internal Photographs Photo 7 Internal of EUT Photo 8 Appearance of PCB FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Photo 9 Appearance of PCB Photo 10 Battery Appearance BT Ant.

Shenzhen Toby Technology Co., Ltd. Report No.: TBR-C-202509-0164-14 Page: 1 of 8 TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 Maximum Permissible Exposure Evaluation FCC ID: 2BE9U-HD8ULTRA Report No. : TBR-C-202509-0164-14 Applicant : Shenzhen Huadai Technology Co., Ltd Equipment Under Test (EUT) EUT Name : Smart Watch Model No. : HD8ultra Series Model No. : N/A Brand Name : N/A Sample ID : HC-C-202509-0164-01-01 Receipt Date : 2025-09-26 Test Date : 2025-09-26 to 2025-10-27 Issue Date : 2025-10-27 Standards : FCC Part 2.1093 Test Method : KDB 447498 D01 General RF Exposure Guidance v06 Conclusions : PASS In the configuration tested, the EUT complied with the standards specified above. Test By : Lily zhang Reviewed By : Henry haung Approved By : Ivan Su This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in the report. Report No.: TBR-C-202509-0164-14 Page: 2 of 8 TB-RF-074-1.0 CONTENTS CONTENTS ............................................................................................................................................. 2 1. GENERAL INFORMATION ABOUT EUT.............................................................................. 4 1.1 Client Information ................................................................................................................. 4 1.2 General Description of EUT (Equipment Under Test) ................................................... 4 2. MEASUREMENT UNCERTAINTY .......................................................................................... 5 3. TEST FACILITY.......................................................................................................................... 6 4. SAR TEST EXCLUSION CALCULATIONS .......................................................................... 7 Report No.: TBR-C-202509-0164-14 Page: 3 of 8 TB-RF-074-1.0 Revision History Report No. Version Description Issued Date TBR-C-202509-0164-14 Rev.01 Initial issue of report 2025-10-27 Report No.: TBR-C-202509-0164-14 Page: 4 of 8 TB-RF-074-1.0 1. General Information about EUT 1.1 Client Information Applicant : Shenzhen Huadai Technology Co., Ltd Address : A308, Fuji Industrial Park, No.33 Liuhe Road, Henggang Street, Longgang District, Shenzhen, China Manufacturer : Shenzhen Huadai Technology Co., Ltd Address : A308, Fuji Industrial Park, No.33 Liuhe Road, Henggang Street, Longgang District, Shenzhen, China 1.2 General Description of EUT (Equipment Under Test) EUT Name : Smart Watch Models No. : HD8ultra Model Different : N/A Product Description : Operation Frequency: Bluetooth: 2402MHz~2480MHz Modulation Type: Bluetooth: GFSK, Pi/4-DQPSK, 8DPSK Antenna Gain: -1dBi Conducting Wire Antenna Power Rating : USB Input: DC 5V DC 3.8V 400mAh Rechargeable Li-ion battery Software Version : V1.0 Hardware Version : V1.0 Remark: The above antenna information is declared by manufacturer and for more detailed features description, please refer to the manufacturer's specifications, the laboratory shall not be held responsible. Report No.: TBR-C-202509-0164-14 Page: 5 of 8 TB-RF-074-1.0 2. Measurement Uncertainty The reported uncertainty of measurement y±U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %. Test Item Parameters Expanded Uncertainty (ULab) Conducted Emission Level Accuracy: 9kHz~150kHz 150kHz to 30MHz ±3.50 dB ±3.10 dB Radiated Emission Level Accuracy: 9kHz to 30 MHz ±4.60 dB Radiated Emission Level Accuracy: 30MHz to 1000 MHz ±4.50 dB Radiated Emission Level Accuracy: Above 1000MHz ±4.20 dB Temperature / ±0.6°C Humidity / ±4% Supply voltages / ±2% Time / ±4% Report No.: TBR-C-202509-0164-14 Page: 6 of 8 TB-RF-074-1.0 3. Test Facility The testing report were performed by the Shenzhen Toby Technology Co., Ltd., in their facilities located at 1/F., Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. At the time of testing, the following bodies accredited the Laboratory: CNAS (L5813) The Laboratory has been accredited by CNAS to ISO/IEC 17025: 2017 General Requirements for the Competence of Testing and Calibration Laboratories for the competence in the field of testing. And the Registration No.: CNAS L5813. A2LA Certificate No.: 4750.01 The laboratory has been accredited by American Association for Laboratory Accreditation(A2LA) to ISO/IEC 17025：2017 General Requirements for the Competence of Testing and Calibration Laboratories for the technical competence in the field of Electrical Testing. And the A2LA Certificate No.: 4750.01.FCC Accredited Test Site Number: 854351. Designation Number: CN1223. IC Registration No.: (11950A) The Laboratory has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing. The site registration: Site# 11950A. CAB identifier: CN0056. Report No.: TBR-C-202509-0164-14 Page: 7 of 8 TB-RF-074-1.0 4. SAR Test Exclusion Calculations 4.1 FCC: According to KDB 447498 D01 v06 Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies v06. (1) Clause 4.3: General SAR test reduction and exclusion guidance Sub clause 4.31: Standalone SAR test exclusion considerations 1) The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6GHz at test separation distance≤5 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√ f (GHz) ] ≤3.0 for 1-g SAR [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√ f (GHz) ] ≤7.5.0 for 10-g SAR 4.2 Summary simultaneous tr…

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。。 6th Floor, Jihao Building, No.1086 Shennan East Road, Luohu District 福贝特国际〈香港〉有限公司 FBETTER INTERNATIONAL (H.K) CO., LIMITED Notesforantennainstallation Length Notesforantennainstallation Electronicwireinstallationrecommendations: 1:Theelectronlinelengthisinthe24.60mm. 2:Theelectronicwireisinstalledonthesideofthehorn. 3:Theendoftheelectronicwireisfixedwithadhesive papertomaketheconsistencyofthebatchproductiongood. Antennaparameters Freq2.4GHz2.5GHzspce VSWR1.481.79 ＜ 2 LogMag-14.15-10.93 ＜ -10 Antennaparameters Frequency/MhzEfficiency / %Gain/dBi 24004.2-2.5 24104.21-2.8 24204.33-1.0 24304.38-2.9 24404.4-2.89 24504.66-2.83 24604.8-1.52 24705.01-1.89 24804.7-1.63 24904.65-2.03 25004.29-2.3 Themeasureddistanceontheroofofthebuilding Project T11-N Testdate 2024.5.9 Software release Testlocation Themeasureddistanceontheroofofthe building Model Measuringdistance Metalwatchband Non-metallic watchband IOS Positiveeffective distance (≥15m) 1817 Backeffectivedistance (≥10m) 106 Android Positiveeffective distance (≥15m) 1818 Backeffectivedistance (≥10m) 99 谢谢，合作愉快！ Thank You! The Concepts National Income And National Product Have Roughly The Same Value And Can Be Used Interchangeably If Our Interest Is In Their

Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202509-0164-15 Page: 1 of 69 FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 RF Test Data for Bluetooth (Conducted Measurements) General Description of EUT Product Name: Smart Watch Test Model: HD8ultra Sample ID: HC-C-202509-0164-01-01 Environmental Conditions Temperature: 25.6°C Relative Humidity: 52.6% Test Voltage: DC 3.8V Test Engineer: Lily zhang Note: For a more detailed features description, please refer to the report TBR-C-202509-0164-15 The report only show the worst case data. Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202509-0164-15 Page: 2 of 69 FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Contents 1. Duty Cycle ..................................................................................................................................................................................... 3 2. Dwell Time ..................................................................................................................................................................................... 9 3. Maximum Conducted Output Power .......................................................................................................................................... 15 4. -20dB Bandwidth ......................................................................................................................................................................... 21 5. Occupied Channel Bandwidth .................................................................................................................................................... 27 6. Band Edge ................................................................................................................................................................................... 33 7. Band Edge(Hopping) ................................................................................................................................................................... 40 8. Conducted RF Spurious Emission ............................................................................................................................................. 47 9. Restrict Band ............................................................................................................................................................................... 57 10. Carrier Frequencies Separation ........................................................................................................................................ 64 11. Number of Hopping Channel ............................................................................................................................................. 67 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202509-0164-15 Page: 3 of 69 FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 1. Duty Cycle Condition Mode Frequency (MHz) Antenna Duty Cycle (%) Correction Factor (dB) 1/T (kHz) NVNT 1-DH5 2402 Ant1 77.65 1.1 0.34 NVNT 1-DH5 2441 Ant1 77.65 1.1 0.34 NVNT 1-DH5 2480 Ant1 77.65 1.1 0.34 NVNT 2-DH5 2402 Ant1 77.81 1.09 0.34 NVNT 2-DH5 2441 Ant1 77.81 1.09 0.34 NVNT 2-DH5 2480 Ant1 77.81 1.09 0.34 NVNT 3-DH5 2402 Ant1 77.84 1.09 0.34 NVNT 3-DH5 2441 Ant1 77.84 1.09 0.34 NVNT 3-DH5 2480 Ant1 77.84 1.09 0.34 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202509-0164-15 Page: 4 of 69 FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Test Graphs Duty Cycle NVNT 1-DH5 2402MHz Ant1 Duty Cycle NVNT 1-DH5 2441MHz Ant1 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202509-0164-15 Page: 5 of 69 FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Duty Cycle NVNT 1-DH5 2480MHz Ant1 Duty Cycle NVNT 2-DH5 2402MHz Ant1 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202509-0164-15 Page: 6 of 69 FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Duty Cycle NVNT 2-DH5 2441MHz Ant1 Duty Cycle NVNT 2-DH5 2480MHz Ant1 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202509-0164-15 Page: 7 of 69 FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Duty Cycle NVNT 3-DH5 2402MHz Ant1 Duty Cycle NVNT 3-DH5 2441MHz Ant1 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202509-0164-15 Page: 8 of 69 FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Duty Cycle NVNT 3-DH5 2480MHz Ant1 Shenzhen Toby Technology Co., Ltd. Http://www.tobylab.cn Add：1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China. Report No.: TBR-C-202509-0164-15 Page: 9 of 69 FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 2. Dwell Time Condition Mode Frequency (MHz) Antenna Pulse Time (ms) Total Dwell Time (ms) Period Time (ms) Limit (ms) Verdict NVNT 1-DH1 2441 Ant1 0.407 130.24 31600 400 Pass NVNT 1-DH3 2441 Ant1 1.663 266.08 31600 400 Pass NVNT 1-DH5 2441 Ant1 2.912 310.613 31600 400 Pass NVNT 2-DH1 2441 Ant1 0.417 133.44 31600 400 Pass NVNT 2-DH3 2441 Ant1 1.669 267.04 31600 400 Pass NVNT 2-DH5 2441 Ant1 2.917 311.147 31600 400 Pass NVNT 3-DH1 2441 Ant1 0.417 133.44 31600 400 Pass NVN…

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Shenzhen Toby Technology Co., Ltd. Report No.: TBR-C-202509-0164-15 Page: 1 of 39 TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 Radio Test Report FCC ID: 2BE9U-HD8ULTRA Report No. : TBR-C-202509-0164-15 Applicant : Shenzhen Huadai Technology Co., Ltd Equipment Under Test (EUT) EUT Name : Smart Watch Model No. : HD8ultra Series Model No. : N/A Brand Name : N/A Sample ID : HC-C-202509-0164-01-01&HC-C-202509-0164-01-02 Receipt Date : 2025-09-26 Test Date : 2025-09-26 to 2025-10-27 Issue Date : 2025-10-27 Standards : FCC Part 15 Subpart C 15.247 Test Method : ANSI C63.10: 2020 KDB 558074 D01 15.247 Meas Guidance v05r02 Conclusions : PASS In the configuration tested, the EUT complied with the standards specified above. Test By : Lily zhang Reviewed By : Henry haung Approved By : Ivan Su This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in the report. Report No.: TBR-C-202509-0164-15 Page: 2 of 39 TB-RF-074-1.0 Contents CONTENTS ............................................................................................................................................ 2 1. GENERAL INFORMATION ABOUT EUT ............................................................................. 5 1.1 Client Information ................................................................................................................ 5 1.2 General Description of EUT (Equipment Under Test) ................................................... 5 1.3 Block Diagram Showing the Configuration of System Tested ...................................... 7 1.4 Description of Support Units .............................................................................................. 8 1.5 Description of Test Mode ................................................................................................... 8 1.6 Description of Test Software Setting ................................................................................ 9 1.7 Measurement Uncertainty ................................................................................................ 10 1.8 Test Facility......................................................................................................................... 11 2. TEST SUMMARY..................................................................................................................... 12 3. TEST SOFTWARE .................................................................................................................. 12 4. TEST EQUIPMENT AND TEST SITE .................................................................................. 13 5. CONDUCTED EMISSION ...................................................................................................... 14 5.1 Test Standard and Limit ................................................................................................... 14 5.2 Test Setup........................................................................................................................... 14 5.3 Test Procedure .................................................................................................................. 14 5.4 Deviation From Test Standard......................................................................................... 14 5.5 EUT Operating Mode ........................................................................................................ 15 5.6 Test Data............................................................................................................................. 15 6. RADIATED AND CONDUCTED UNWANTED EMISSIONS ............................................ 16 6.1 Test Standard and Limit ................................................................................................... 16 6.2 Test Setup........................................................................................................................... 17 6.3 Test Procedure .................................................................................................................. 18 6.4 Deviation From Test Standard......................................................................................... 19 6.5 EUT Operating Mode ........................................................................................................ 19 6.6 Test Data............................................................................................................................. 19 7. RESTRICTED BANDS AND BAND EDGE REQUIREMENT .......................................... 20 7.1 Test Standard and Limit ................................................................................................... 20 7.2 Test Setup........................................................................................................................... 20 7.3 Test Procedure .................................................................................................................. 21 7.4 Deviation From Test Standard......................................................................................... 21 7.5 EUT Operating Mode ........................................................................................................ 21 7.6 Test Data............................................................................................................................. 21 8. 99% OCCUPIED AND 20DB BANDWIDTH ....................................................................... 22 8.1 Test Standard and Limit ................................................................................................... 22 8.2 Test Setup....................................................................…

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FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Appendix V EUT Test Photographs Photo of Setup for Conducted Emission(AC POWER) Photo of Setup for Radiated Emission (30MHz~1GHz) FCC ID:2BE9U-HD8ULTRA TB-RF-074-1.0 Photo of Setup for Radiated Emission (Above 1 GHz) Conducted Measurements Test -----END OF REPORT-----