2AYVT-S3953ACSKG Watch GT5

- SKG Health Technologies Co., Ltd. - Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 4/11/2024 U.S. Agent Designation [SKG Health Technologies Co., Ltd.] acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: [2AYVT-S3953AC]): Name and company of U.S. agent: AOCE Corporation Inc. Physical U.S. address of agent: 6547 N Academy Bivd #2266，Colorado Springs， CO, 80918 United States FRN of U.S. agent: 0033401381 Email address of U.S. agent: [email protected] [AOCE Corporation Inc.] acknowledges their obligation to accept service of process on behalf of [SKG Health Technologies Co., Ltd.]. [SKG Health Technologies Co., Ltd.] with the FRN [0030525117] accepts its obligation 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. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature [Name] Henry Li [Title] Manager [Company] SKG Health Technologies Co., Ltd. Signature [Name of U.S. agent] Johnson.wang [Title of U.S. agent] Manager [Company of U.S. agent] AOCE Corporation Inc. 48_[mo del] US_Agent_2.911(d)(7) - U, V0 5

SKG Health Technologies Co., Ltd. The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 4/11/2024 To whom it may concern: We, [SKG Health Technologies Co., Ltd.], hereby certify that the equipment for which authorization is sought (FCC ID: [2AYVT-S3953AC]) is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist ) as an entity producing “covered” equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(b) and (d)(5) and (6). Sincerely, Signature [Name] Henry Li [Title] Manager [Company] SKG Health Technologies Co., Ltd. 62_[model] CoveredEqu_2.911(d)(5)(i) and (ii) - U, V02

Label Location On EUT Label

RF EXPOSURE EVALUATION FCC ID: 2AYVT-S3953AC 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. Channel (MHz) Maximum output power (dBm) Tune up tolerance (dBm) Max Tune Up Power (dBm) Distance (mm) Calculation results Limit Operating Mode 2402 2.91 2.91±1 3.91 5 0.763 3 BDR&EDR 2441 2.89 2.89±1 3.89 5 0.765 3 2480 2.89 2.89±1 3.89 5 0.771 3 2402 2.69 2.69±1 3.69 5 0.725 3 2441 2.72 2.72±1 3.72 5 0.736 3 2480 2.72 2.72±1 3.72 5 0.742 3 2402 2.70 2.70±1 3.70 5 0.727 3 2441 2.69 2.69±1 3.69 5 0.731 3 2480 2.74 2.74±1 3.74 5 0.745 3 2402 0.53 0.53±1 1.53 5 0.441 3 BLE 2440 2.66 2.66±1 3.66 5 0.726 3 2480 2.65 2.65±1 3.65 5 0.730 3 Note: BDR&EDR + BLE simultaneous: 0.771/3+0.730/3=0.500 < 1 Test Results: PASS.

Page 1 of 24 Report No.: 8227EU012213W-AE ANNEX D TEST DATA For Project No.: 8227EU012213W Client: SKG Health Technologies Co., Ltd. Product Name: SKG Watch GT5 Model No.: S3953AC FCC ID: 2AYVT-S3953AC Technology: Bluetooth BLE Test Engineer: Test Date: 2024-03-27 Page 2 of 24 Report No.: 8227EU012213W-AE 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 Unwanted Emissions In Restricted Frequency Bands Pass Page 3 of 24 Report No.: 8227EU012213W-AE 1. Duty Cycle 1.1 Ant1 1.1.1 Test Result Ant1 Mode TX Type Frequency (MHz) T_on (ms) Period (ms) Duty Cycle (%) Duty Cycle Correction Factor (dB) Max. DC Variation (%) 1M SISO 2402 2.163 2.500 86.52 0.63 0.03 2440 2.162 2.499 86.51 0.63 0.03 2480 2.163 2.500 86.52 0.63 0.00 Page 4 of 24 Report No.: 8227EU012213W-AE 1.1.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 5 of 24 Report No.: 8227EU012213W-AE 1M_HCH_2480MHz_Ant1_NTNV Page 6 of 24 Report No.: 8227EU012213W-AE 2. Bandwidth 2.1 OBW 2.1.1 Test Result Mode TX Type Frequency (MHz) ANT 99% Occupied Bandwidth (MHz) Verdict Result 1M SISO 2402 1 1.049 Pass 2440 1 1.048 Pass 2480 1 1.049 Pass Page 7 of 24 Report No.: 8227EU012213W-AE 2.1.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 8 of 24 Report No.: 8227EU012213W-AE 1M_HCH_2480MHz_Ant1_NTNV Page 9 of 24 Report No.: 8227EU012213W-AE 2.2 6dB BW 2.2.1 Test Result Mode TX Type Frequency (MHz) ANT 6dB Bandwidth (MHz) Verdict Result Limit 1M SISO 2402 1 0.668 >=0.5 Pass 2440 1 0.660 >=0.5 Pass 2480 1 0.669 >=0.5 Pass Page 10 of 24 Report No.: 8227EU012213W-AE 2.2.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 11 of 24 Report No.: 8227EU012213W-AE 1M_HCH_2480MHz_Ant1_NTNV Page 12 of 24 Report No.: 8227EU012213W-AE 3. Maximum Conducted Output Power 3.1 Power 3.1.1 Test Result Mode TX Type Frequency (MHz) Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit 1M SISO 2402 0.53 <=30 Pass 2440 2.66 <=30 Pass 2480 2.65 <=30 Pass Page 13 of 24 Report No.: 8227EU012213W-AE 3.1.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 14 of 24 Report No.: 8227EU012213W-AE 1M_HCH_2480MHz_Ant1_NTNV Page 15 of 24 Report No.: 8227EU012213W-AE 4. Maximum Power Spectral Density 4.1 PSD 4.1.1 Test Result Mode TX Type Frequency (MHz) Maximum PSD (dBm/3kHz) Verdict ANT1 Limit 1M SISO 2402 -15.05 <=8 Pass 2440 -13.12 <=8 Pass 2480 -12.94 <=8 Pass Page 16 of 24 Report No.: 8227EU012213W-AE 4.1.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 17 of 24 Report No.: 8227EU012213W-AE 1M_HCH_2480MHz_Ant1_NTNV Page 18 of 24 Report No.: 8227EU012213W-AE 5. Unwanted Emissions In Non-restricted Frequency Bands 5.1 Ref 5.1.1 Test Result Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) 1M SISO 2402 1 0.09 2440 1 2.11 2480 1 2.30 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 19 of 24 Report No.: 8227EU012213W-AE 5.1.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV Page 20 of 24 Report No.: 8227EU012213W-AE 1M_HCH_2480MHz_Ant1_NTNV Page 21 of 24 Report No.: 8227EU012213W-AE 5.2 CSE 5.2.1 Test Result Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) Limit (dBm) Verdict 1M SISO 2402 1 2.30 -17.70 Pass 2440 1 2.30 -17.70 Pass 2480 1 2.30 -17.70 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 22 of 24 Report No.: 8227EU012213W-AE 5.2.2 Test Graph 1M_LCH_2402MHz_Ant1_NTNV 1M_LCH_2402MHz_Ant1_NTNV Page 23 of 24 Report No.: 8227EU012213W-AE 1M_MCH_2440MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV Page 24 of 24 Report No.: 8227EU012213W-AE 1M_HCH_2480MHz_Ant1_NTNV --------- End of Report -------

TEST REPORT Report No.: 8227EU012213W2 Applicant: SKG Health Technologies Co., Ltd. Address: 23A Floor, Building 3, Zhongke R&D Park, No.009 Gaoxin South 1st Rd, High-tech Zone Community Yuehai Street, Nanshan District, Shenzhen, China Product Name: SKG Watch GT5 Model No.: S3953AC Trademark: SKG FCC ID: 2AYVT-S3953AC Test Standard(s): 47 CFR Part 15 Subpart C Date of Receipt: Mar. 22, 2024 Test Date: Mar. 22, 2024 – Mar. 30, 2024 Date of Issue: Apr. 11, 2024 ISSUED BY: SHENZHEN EU TESTING LABORATORY LIMITED Prepared by: Reviewed and Approved by: ____________________ _____________________ Mikey Zhu/ Engineer Sally Zhang/ Manager Page 2 of 32 Report No.: 8227EU012213W2 TRF No.: FCC Part 15.247_BLE (A01) Revision Record Report Version Issued Date Description Status V0 Apr. 11, 2024 Original Valid Page 3 of 32 Report No.: 8227EU012213W2 TRF No.: FCC Part 15.247_BLE (A01) 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 MEASUREMENT UNCERTAINTY ........................................................................................................... 9 4.6 DEVIATION FROM STANDARDS ........................................................................................................... 9 4.7 ABNORMALITIES FROM STANDARD CONDITION ................................................................................... 9 5 TEST ITEMS ........................................................................................................................................... 10 5.1 ANTENNA REQUIREMENT .................................................................................................................. 10 5.1.1 Test Requirement .............................................................................................................. 10 5.1.2 Antenna Anti-Replacement Construction .......................................................................... 10 5.1.3 Antenna Gain .................................................................................................................... 10 5.2 CONDUCTED EMISSION AT AC POWER LINE ..................................................................................... 11 5.2.1 Test Requirement .............................................................................................................. 11 5.2.2 Test Setup Diagram .......................................................................................................... 11 5.2.3 Test Procedure .................................................................................................................. 11 5.2.4 Test Data ........................................................................................................................... 11 5.3 OCCUPIED BANDWIDTH ................................................................................................................... 14 5.3.1 Test Requirement .............................................................................................................. 14 5.3.2 Test Setup Diagram .......................................................................................................... 14 5.3.3 Test Procedure .................................................................................................................. 14 5.3.4 Test Data ........................................................................................................................... 14 5.4 MAXIMUM CONDUCTED OUTPUT POWER .......................................................................................... 15 5.4.1 Test Requirement .............................................................................................................. 15 5.4.2 Test Setup Diagram ..............…

Text truncated - open the document above for the full version.

version01 SKG Health Technologies Co., Ltd. Declaration concerning Antenna Specification It i s hereby declared that the product Model No.: S3953AC FCC ID: 2AYVT-S3953AC fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for Chip antenna type(s) described below: Model No. of antenna: Aidu GT5 Antenna Type of antenna: Chip Antenna Gain of the antenna: -2.3 dBi Frequency range: 2400-2500 MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: SKG Health Technologies Co., Ltd. Address: 23A Floor, Building 3, Zhongke R&D Park, No.009 Gaoxin South 1st Rd, High-tech Zone Community Yuehai Street, Nanshan District, Shenzhen, China City: Shenzhen ZIP / Postal code: Country: China Place: Place: Date: 2024-04-11 Signature:

Dedicated to providing customers with professional-grade antenna solutions Aidu GT5 Antenna Test Report RF: Tsang Cheung-ho Date:2024-3-25 Contact:15112352038 Dedicated to providing customers with professional-grade antenna solutions RF: Tsang Cheung-ho Date:2021-10-12 Report version: V0.1 project development environment Dedicated to providing customers with professional-grade antenna solutions 1 2 3 4 5 6 Dedicated to providing customers with professional-grade antenna solutions Project Commissioning Profile Models - Board type - band and antenna material The main antenna frequency band Material 2G- 3G- 4G- other antennas GPS1575.42MHZ BT2400-2500MHZ performance requirements Dedicated to providing customers with professional-grade antenna solutions Outline of the report version version of the reportReporting time The problem addressed by this antenna development, the V0.1 2024/3/6Passive First Edition Preliminary Commissioning V0.2 2024/3/23 metal ring grounded vs. ungrounded passive comparison test data V0.3 2024/3/25Addition of passive directional maps Dedicated to providing customers with professional-grade antenna solutions Passive parameter antenna S11 Labeling: yellow waveform if the metal ring is grounded, blue waveform if the metal ring is not grounded Dedicated to providing customers with professional-grade antenna solutions Antenna passive parameter - FS Freq(MHz)Gain(dBi)Efficiency(dB)Efficiency(%) 2400 -2.98-6.7621.10% 2410 -2.7-6.6521.60% 2420 -2.7-6.721.40% 2430 -2.37-6.7721.00% 2440 -2.3-7.1219.40% 2450 -2.34-7.517.80% 2460 -2.47-7.8616.40% 2470 -3.21-8.4114.40% 2480 -3.25-8.2215.10% Dedicated to providing customers with professional-grade antenna solutions Antenna passive parameter - ARM Freq(MHz)Gain(dBi)Efficiency(dB)Efficiency(%) 2400 -5.41-10.938.10% 2410 -5.15-10.788.40% 2420 -4.97-10.758.40% 2430 -4.63-10.758.40% 2440 -4.36-10.998.00% 2450 -4.32-11.237.50% 2460 -4.21-11.457.20% 2470 -4.59-11.816.60% 2480 -4.22-11.457.20% Dedicated to providing customers with professional-grade antenna solutions Antenna passive parameter - FS Freq(MHz)Gain(dBi)Efficiency(dB)Efficiency(%) 1550-4.7-9.112.2 1560-4.8-9.112.1 1570-4.8-9.312 1580-4.9-9.311.8 1590-5.0 -9.311.7 Dedicated to providing customers with professional-grade antenna solutions Antenna passive parameter - ARM Freq(MHz)Gain(dBi)Efficiency(dB)Efficiency(%) 1550 -6.17-11.626.90% 1560 -5.86-11.457.20% 1570 -5.91-11.367.30% 1580 -5.99-11.387.30% 1590 -6.12-11.547.00% Dedicated to providing customers with professional-grade antenna solutions Antenna pattern - FS GPS BT Dedicated to providing customers with professional-grade antenna solutions Antenna plan - FS GPS BT Dedicated to providing customers with professional-grade antenna solutions antenna matching changes Currently the antenna uses these two shrapnel, matched in series with 0 ohm, ground pin empty sticker The shunt inductance has not been changed here Dedicated to providing customers with professional-grade antenna solutions Pictures of antenna prototypes Compare and contrast grounded and ungrounded metal rings Dedicated to providing customers with professional-grade antenna solutions antenna test environment Shenzhen Address:4th Floor, Building 2, South Taiyun Chuanggu, Guangming Avenue, Guangming New District, Shenzhen, China Tel:0755-23984257 Fax:0755-86090455