2BNTO-Z60SBluetooth Headset

Shenzhen Kai Chuang Future Technology Co., LTD Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: September 25, 2025 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BNTO-Z60S [Shenzhen Kai Chuang Future 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. [Shenzhen Kai Chuang Future 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). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, Xiao Xia Shenzhen Kai Chuang Future Technology Co., LTD Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: September 25, 2025 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BNTO-Z60S [Shenzhen Kai Chuang Future 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. Sincerely, Xiao Xia

Shenzhen Kai Chuang Future Technology Co., LTD * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. 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 August 27, 2025 Equipment Authorization Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2BNTO-Z60S Per section 2.911(d)(7) of the FCC rules, Shenzhen Kai Chuang Future Technology Co., LTD (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. Designated agent* for service of process: Company Name: EMCTEK Physical U.S. Company Address: 11788 Big Canyon Lane, San Diego, CALIFORNIA 92131 USA Agent name: Fang Liu Agent Email Address: [email protected] FRN: 0037012671 The above contact person accepts the obligation for service of process. The applicant 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. Applicant Signed: Designated Agent Signed: (Required, if different to Applicant): Signed: Signed: Printed name: Xiao Xia Deng Printed name: Fang Liu Title: Certification manager Title: Manager Company Name: Shenzhen Kai Chuang Future Technology Co., LTD Company Name: EMCTEK Date: August 19, 2025 Date: August 19, 2025 FRN Code: 0036690915 FRN Code: 0037012671

Rev 11/20/07 Shenzhen Kai Chuang Future Technology Co., LTD Federal Communications Commission Authorization and Evaluation Division Date: October 9, 2025 Confidentiality Request regarding application for certification of FCC ID: 2BNTO-Z60S Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanently confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Block Diagram Block Diagram.pdf Schematics Schematics.pdf Operational Description Operational Description.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Signature: Name: Xiao Xia Phone: 13538214502 Fax: / Email: [email protected]

CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn Page 1 of 7 External Photographs Page 2 of 7 Report No.: CTC2025498801 Page 2 of 7 Page 3 of 7 Report No.: CTC2025498801 Page 3 of 7 Page 4 of 7 Report No.: CTC2025498801 Page 4 of 7 Page 5 of 7 Report No.: CTC2025498801 Page 5 of 7 Page 6 of 7 Report No.: CTC2025498801 Page 6 of 7 Page 7 of 7 Report No.: CTC2025498801 Page 7 of 7

CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn Page 1 of 1 FCC ID location in user manual: Specifications: Due to the small size of the device, label will be placed on the packing box and on the usermanual to ensure that the label will be readily visible at the time of purchase

CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn Page 1 of 3 Internal Photographs Page 2 of 3 Report No.: CTC2025498801 Page 2 of 3 ANT Page 3 of 3 Report No.: CTC2025498801 Page 3 of 3

Page 1 of 2 Report No.: CTC2025498803 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-065_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com RF Exposure Evaluation FCC ID: 2BNTO-Z60S According to KDB 447498 D01 General RF Exposure Guidance v06, Clause 4.3.1(a). EUT Specification Product Name: Bluetooth Headset Trade Mark: sanag Model/Type Reference: sanag Z60S Listed Model(s): / Model Differences: / Frequency Band (Operating) BT: 2402MHz ~ 2480MHz BLE: 2402MHz ~ 2480MHz Device Category Portable (<5mm separation) Mobile (>20cm separation) Fixed (>20cm separation) Others ___ Antenna Diversity Single antenna Multiple antennas Tx diversity Rx diversity Tx/Rx diversity Antenna Gain (Max) 3.12dBi Limit 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 -The values 3.0 and 7.5 are referred to as numeric thresholds in step b) below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm, and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 4.1 f) is applied to determine SAR test exclusion. Page 2 of 2 Report No.: CTC2025498803 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-065_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com Measurement Result Mode Frequency (MHz) Max. Measured Power (dBm) Result Limit Verdict GFSK 2402 4.86 1.947 3.0 Pass π/4-DQPSK 2402 5.51 2.279 3.0 Pass 8-DPSK 2402 5.67 2.384 3.0 Pass BLE 1M 2402 4.83 1.933 3.0 Pass BLE 2M 2402 5.11 2.079 3.0 Pass Note: 1. Calculate in the worst-case mode. 2. Max. Tune Up Power is declared by manufacturer, and used to calculate. 3. For a more detailed features description, please refer to the RF Test Report. **********************THE END**********************

深圳市恒信达通信科技有限公司 Shenzhen Hengxinda Technology Co., Ltd. SPECIFICATION Page1 of 8 HXD-BT05S_V1.0 Ceramic Antenna 2012 Size 2400-2500 MHz P/N: HXD-BT05S HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD 深圳市恒信达通信科技有限公司 Shenzhen Hengxinda Technology Co., Ltd. 1.Frequency 2400-2500 MHz 2.Applications For Miniaturized Bluetooth System 3.Dimensions (Unit : mm) 1). Over View : Page2 of 8 HXD-BT05S_V1.0 2). PCB Layout (Unit : mm) : HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD 5. Electrical Characteristics Page3 of 8 HXD-BT05S_V1.0 深圳市恒信达通信科技有限公司 Shenzhen Hengxinda Technology Co., Ltd. 4. Evaluation Board Size and Matching Circuits Part Number HXD-BT9-HM1 Central Frequency2450 MHz Bandwidth100(typ.) MHz V.S.W.R≤2.0 Peak Gain3.12 dBi Impedance50 Ohm PolarizationLinear Azimuth BeamwidthOmni-directional HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD 深圳市恒信达通信科技有限公司 Shenzhen Hengxinda Technology Co., Ltd. 7. Radiation Pattern & Efficiency Page4 of 8 HXD-BT05S_V1.0 6. Return Loss (S11) Frequency (MHz)240024502500 Efficiency (dB)-2.22-1.87-2.08 Efficiency (%)606562 Gain (dBi)2.753.123.01 HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD 深圳市恒信达通信科技有限公司 Shenzhen Hengxinda Technology Co., Ltd. 8. Reflow Soldering Standard Condition Page5 of 8 HXD-BT05S_V1.0 9.Packaging and Dimensions Plastic Tape HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD 深圳市恒信达通信科技有限公司 Shenzhen Hengxinda Technology Co., Ltd. Remarks for Package Reserve a length of 150~200mm for the trailer of the carrier and 250~300 mm for the leader of the carr er and further 250mm of cover tape at the leading part of the carrier. Reel (4000 pcs/Reel) Storage Period Oxidizable Material, 12 months in vacuum sealed bag, please repack within 168 hours by re-seal the package treatment after using. Storage Temperature Range : <30 degree C, Humidity : <60%RH Page6 of 8 HXD-BT05S_V1.0 HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD 深圳市恒信达通信科技有限公司 Shenzhen Hengxinda Technology Co., Ltd. Page7 of 8 HXD-BT05S_V1.0 10. Dependability Test Test itemTest condition / Test methodSpecification Solderability IEC 60068-2-58 GB/T2423.28 *Solder bath temperature：240±5°C *Immersion time：2±0.5 sec Solder：Sn96.5Ag3.0Gu0.5 for lead-free. At least 95% of a surface of each terminal electrode must be covered by fresh solder. Leaching (Resistance *Solder bath temperature：260±5°C *Leaching immersion time：10±1 sec Solder : Sn96.5 Ag3.0 Gu0.5 for lead-free. Loss of metallization on the edges of to dissolution ofeach electrode shall not exceed 25%. metallization) JIS C5101 Resistance to *Preheating temperature：120~150°C, 1 minute. *Solder temperature：260±5°C *Immersion time：10±1 sec Solder： Sn96.5Ag3.0Gu0.5 for lead-free Measurement to be made after keeping at room temperature for 24±2 hrs. No mechanical damage. soldering heatElectrical specification shall satisfy IEC 60068-2-58the descriptions in electrical GB/T2423.28characteristics at the room temperature. Loss of metallization on the edges of each electrode shall not exceed 25%. Drop Test IEC 60068-2-32 GB/T2423.8 Customer’s specification. *Height：50 cm *Test Surface: Rigid surface of concrete or steel. *Times：6 surfaces for each units；2 times for each side. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. Vibration IEC 60068-2-6 GB/T 2423.10 *Frequency：10Hz~55Hz~10Hz(1min) *Total amplitude：1.5mm *Test times：6hrs.(Two hrs each in three mutually perpendicular directions) No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. Adhesive Strength of *Pressurizing force： 5N(≦0603)；10N(>0603) *Test time:10±1 sec No remarkable damage or removal of the Terminationtermination. IEC60068-2-21 GB/T 2423.6 HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD 深圳市恒信达通信科技有限公司 Shenzhen Hengxinda Technology Co., Ltd. Page8 of 8 HXD-BT05S-_V1.0 Bending test IEC 60068-2-21 GB/T 2423.29 The middle part of substrate shall be pressurized by means of the pressurizing rod at a rate of about 1 mm/s per second until the deflection becomes 2mm and then pressure shall be maintained for 10±1 sec. Measurement to be made after keeping at room temperature for 24±2 hours. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. Temperature cycle IEC60068-2-14 GB/T 2423.22 30 minutes at-40°C±2°C. 10~15 minutes at room temperature. 30minutes at +85°C±2°C. 10~15 minutes at room temperature. Total 100 continuous cycles Measurement to be made after keeping at room temperature for 24±2 hrs. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. High temperature IEC 60068-2-2 GB/T2423.2 *Temperature：85±2°C. *Test duration：500+24/-0 hours. Measurement to be made after keeping at room temperature for 24±2 hrs. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics. Humidity (steady conditions) IEC60068-2-3 GB/T 2423.3 *Humidity：85±5%R.H. *Temperature：85±2°C. *Time：500+24/-0 hrs. Measurement to be made after keeping at room temperature for 24±2 hrs ※ 200hrs measuring the first data then 300hrs data. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. Low temperature IEC 60068-2-1 GB/T2423.1 *Temperature：-40±2°C. *Test duration：500+24/-0 hours Measurement to be made after keeping at room temperature for 24±2 hrs. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD HXD

CTC Laboratories, Inc. $CNAS$ CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-059_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com TEST REPORT Report No. .................................... : CTC2025498802 FCC ID ........................................... : 2BNTO-Z60S Applicant ...................................... : Shenzhen Kai Chuang Future Technology Co., LTD Address .......................................... : Xinghe WORLD Twin Towers, No. 8, Yaxing Road, Nankeng Community, Bantian Street, Longgang District, Shenzhen. 3102, 31st floor, West Tower Manufacturer..................................: Dongguan Chiyuan Jizhi Electronic Technology Co.,Ltd Address..........................................: Room 4387, Building 2, No. 20 Caotang Road, Nancheng Street, Dongguan City, Guangdong Province Product Name .............................. : Bluetooth Headset Trade Mark .................................... : sanag Model/Type reference .................... : sanag Z60S Listed Model(s) .............................. : / Standard ....................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 Test Report Form No ..................... : CTC-TR-059_A2 Master TRF ................................... : Dated 2025-05-12 Date of receipt of test sample........: Aug. 12, 2025 Date of testing..............................: Aug. 12, 2025 ~ Aug. 17, 2025 Date of issue................................: Sep. 19, 2025 Result............................................: PASS Compiled by: (Printed name+signature) Lucy Lan Supervised by: (Printed name+signature) Eric Zhang Approved by: (Printed name+signature) Totti Zhao $英文检测章$ $Totti$ This test report may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The client should not use it to claim product endorsement by CTC. The Test Result in the report only apply to the tested sample. The test report shall be invalid without all the signatures of testing engineers, reviewer and approver. Any objections must be raised to CTC within 15 days since the date when the report is received. It will not be taken into consideration beyond this limit. Page 2 of 83 Report No.: CTC2025498802 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-059_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com Table of Contents Page 1. TEST SUMMARY ....................................................................................................................................................... 3 1.1. TEST STANDARDS .......................................................................................................................................................... 3 1.2. REPORT VERSION ......................................................................................................................................................... 3 1.3. TEST DESCRIPTION ........................................................................................................................................................ 3 1.4. TEST FACILITY .............................................................................................................................................................. 4 1.5. MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 1.6. ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 5 2. GENERAL INFORMATION .......................................................................................................................................... 6 2.1. CLIENT INFORMATION ................................................................................................................................................... 6 2.2. GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 6 2.3. ACCESSORY EQUIPMENT INFORMATION ............................................................................................................................ 7 2.4. OPERATION STATE ........................................................................................................................................................ 8 2.5. MEASUREMENT INSTRUMENTS LIST ................................................................................................................................. 9 3. TEST ITEM AND RESULTS ........................................................................................................................................ 11 3.1. CONDUCTED EMISSION................................................................................................................................................ 11 3.2. RADIATED EMISSION ................................................................................................................................................... 14 3.3. BAND EDGE EMISSIONS (RADIATED) .............................................................................................................................. 28 3.4. BAND EDGE AND SPURIOUS EMISSIONS (CONDUCTED) ...........................…

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Page 63 of 83 Report No.: CTC2025498802 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-059_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com 3.6. Channel Separation Limit FCC CFR Title 47 Part 15 Subpart C Section 15.247 (a)(1) Test Item Limit Frequency Range (MHz) Channel Separation >25kHz or >two-thirds of the 20 dB bandwidth Which is greater 2400~2483.5 Test Configuration Test Procedure 1. The EUT was directly connected to the spectrum analyzer and antenna output port as show in the block diagram above. 2. Spectrum Setting: (1) Set RBW = 100 kHz. (2) Set the video bandwidth (VBW) ≥ 3 RBW. (3) Detector = Peak. (4) Trace mode = Max hold. (5) Sweep = Auto couple. Test Mode Please refer to the clause 2.4. Test Result Test Mode Frequency (MHz) Carrier Frequencies Separation (MHz) Limit (MHz) Verdict GFSK Hop_2441 1.006 >0.680 Pass π/4-DQPSK Hop_2441 1 >0.880 Pass 8-DPSK Hop_2441 1.003 >0.873 Pass Page 64 of 83 Report No.: CTC2025498802 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-059_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com Test plot as follows: DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop Page 65 of 83 Report No.: CTC2025498802 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-059_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com 3.7. Number of Hopping Channel Limit FCC CFR Title 47 Part 15 Subpart C Section 15.247 (a)(iii) Section Test Item Limit 15.247 (a)(iii) RSS-247 5.1 d Number of Hopping Channel ≥15 Test Configuration Test Procedure 1. The EUT was directly connected to the spectrum analyzer and antenna output port as show in the block diagram above. 2. Spectrum Setting: (1) Peak Detector: RBW=100 kHz, VBW≥RBW, Sweep time= Auto. Test Mode Please refer to the clause 2.4. Test Result Test Mode Channel Number Limit Verdict GFSK 79 ≥15 Pass π/4-DQPSK 79 ≥15 Pass 8-DPSK 79 ≥15 Pass Page 66 of 83 Report No.: CTC2025498802 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-059_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com Test plot as follows: DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop Page 67 of 83 Report No.: CTC2025498802 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-059_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com 3.8. Dwell Time Limit FCC CFR Title 47 Part 15 Subpart C Section 15.247 (a)(iii) Section Test Item Limit 15.247 (a)(iii) RSS-247 5.1 d Average Time of Occupancy 0.4 sec Test Configuration Test Procedure 1. The EUT was directly connected to the spectrum analyzer and antenna output port as show in the block diagram above. 2. Spectrum Setting: (1) Spectrum Setting: RBW=1MHz, VBW≥RBW. (2) Use video trigger with the trigger level set to enable triggering only on full pulses. (3) Sweep Time is more than once pulse time. (4) Set the center frequency on any frequency would be measure and set the frequency span to zero. (5) Measure the maximum time duration of one single pulse. (6) Set the EUT for packet transmitting. Test Mode Please refer to the clause 2.4. Page 68 of 83 Report No.: CTC2025498802 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-059_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com Test Result TestMode Antenna Freq(MHz) BurstWidth [ms] TotalHops [Num] Result[s] Limit[s] Verdict DH1 Ant1 Hop 0.379 320 0.121 ≤0.4 PASS DH3 Ant1 Hop 1.626 130 0.211 ≤0.4 PASS DH5 Ant1 Hop 2.868 120 0.344 ≤0.4 PASS 2DH1 Ant1 Hop 0.388 320 0.124 ≤0.4 PASS 2DH3 Ant1 Hop 1.633 150 0.245 ≤0.4 PASS 2DH5 Ant1 Hop 2.873 130 0.373 ≤0.4 PASS 3DH1 Ant1 Hop 0.388 330 0.128 ≤0.4 PASS 3DH3 Ant1 Hop 1.631 140 0.228 ≤0.4 PASS 3DH5 Ant1 Hop 2.875 100 0.288 ≤0.4 PASS Page 69 of 83 Report No.: CTC2025498802 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn TRF No：CTC-TR-059_A2 For anti-fake verification, please visit the official website of China Inspection And Testing Society : yz.cncaq.com Test plot as follows: DH1_Ant1_Hop DH3_Ant1_Hop Page 70 of 83 Report No.: CTC2025498802 CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, …

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CTC Laboratories, Inc. Room 107, 108, 207, 208, 303 of Building A, Room 101 of Building B, No.7, Lanqing 1st Road, Luhu Community, Guanhu Subdistrict, Longhua District, Shenzhen, Guangdong, China Tel.: (86)755-27521059 Fax: (86)755-27521011 Http://www.sz-ctc.org.cn Page 1 of 2 Radiated Measurements Below 1GHz Above1GHz Page 2 of 2 Report No.: CTC2025498801 Page 2 of 2 Conducted Emissions