2AXI2ATM3405MOD-WQKExtreme Low Power Bluetooth 6.0 Module

Atmosic Technologies 2130 Gold Street Suite 200 San Jose, CA95002, USA U.S. Agent for Service of Process Attestation Date: 2026/6/12 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia MD 21046 USA Ref: Attestation Statements Part 2.911(d)(7) Filing Grantee Code: 2AXI2 Applicant FRN：0029963030 To Whom It May Concern: Atmosic Technologies (“the applicant”) certifies that, as of the date of the filing of the application, we designate ourselves as the U.S. agent for service of process. And confirms that the agent for at least 1 year after marketing / sales completed; and we will inform FCC of any change in agent. Designated U.S. Agent Information: Name: Atmosic Technologies FRN: 0029963030 Address: 2130 Gold Street Suite 200 San Jose, CA95002, USA Contact Person: Frank Ku Tel.: 408 359 8859 Email: [email protected] Sincerely, Company name : Atmosic Technologies Company address : 2130 Gold Street Suite 200 San Jose, CA95002, USA Signature : Name : Frank Ku E-Mail : [email protected] Te l : 408 359 8859

Atmosic Technologies 2130 Gold Street Suite 200 San Jose, CA95002, USA Attestation Statements Date: 2026/6/12 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia MD 21046 USA Ref: Attestation Statements Part 2.911(d)(5)(i) and Part 2.911(d)(5)(ii) Filing FCC ID：2AXI2ATM3405MOD-WQK To Whom It May Concern: Statement for 47 CFR section 2.911(d)(5)(i) Atmosic Technologies (“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. Atmosic Technologies (“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. Statement for 47 CFR section 2.911(d)(5)(ii) Atmosic Technologies (“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. Respectfully, Applicant’s company name : Atmosic Technologies Applicant’s company address : 2130 Gold Street Suite 200 San Jose, CA95002, USA Signature : Name and Job Title : Frank Ku / VP of Taiwan Design Center E- Mail : [email protected] Te l : 408 359 8859 Fax : 408 359 8859

Atmosic Technologies 2130 Gold Street Suite 200 San Jose, CA95002, USA Power of Attorney Date: 2026/6/12 Dear Sir, I hereby have entrusted the following person to be a proxy regarding application for Type Certification. Sporton International Inc. Hsinchu Laboratory Address : No.8, Lane 724, Bo-ai St., Jhubei City, HsinChu County 302, Taiwan, R.O.C. Name : Leo Huang Job Title : Manager e-mail : [email protected] I am therefore responsible for the contents of the application. FCC ID: 2AXI2ATM3405MOD-WQK Respectfully, Applicant’s company name : Atmosic Technologies Applicant’s company address : 2130 Gold Street Suite 200 San Jose, CA95002, USA Signature : Name and Job Title : Frank Ku / VP of Taiwan Design Center E-Mail : [email protected] Te l : 408 359 8859 Fax : 408 359 8859

Module Approval Request Letter Date: 2026/6/11 Subject: Module Approval FCC ID: 2AXI2ATM3405MOD-WQK To Whom It May Concern: We, Sporton International Inc. Hsinchu Laboratory, are authorized by Atmosic Technologies to have their state-of-the-art device approved under module approval authorization. The application of this module is specified to mobile host equipment. The requirements regulated in CFR47 Part 15.212 have been fulfilled and clearly explained below. 1. The requirement of RF shielding: The shielding of the radio portion can be demonstrated in exhibition External Photo. 2. The requirement of buffered inputs: Buffered data inputs stage has been integrated in chip ATM3405-5WCAQK. 3. The requirement of power supply regulation: The part number of the power regulator is ATM3405-5WCAQK. 4. The requirements of section 15.203 and 15.204(C): The requirements of antenna connector and spurious emission have been fulfilled. Please reference the exhibition Test Report. 5. The requirement of stand-alone test configuration: Please reference exhibition Test Configuration Photo for the stand-alone test configuration. 6. The requirement of labeling: The instruction on the labeling rule of the end product has been stated in the users manual of this module. Please also see the exhibition Label Sample. 7. The requirement of compliance on specific rule or operating requirements: The required FCC rule has been fulfilled and all the instructions for maintaining compliance has been clearly stated in the Users Manual. 8. The requirement of RF exposure: Please refer exhibition RF Exposure for the compliance of MPE RF exposure rule. Please do not hesitate to contact me for any questions of this request letter. Thank you. Company name : Sporton International Inc. Hsinchu Laboratory Company Address : No.8, Ln. 724, Bo’ai St., Zhubei City, Hsinchu County 302010, Taiwan (R.O.C.) Signature : Name : Leo Huang Job Title : Manager

Atmosic Technologies 2130 Gold Street Suite 200 San Jose, CA95002, USA Confidential Letter Date: 2026/6/12 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia MD 21046 USA Subject: Request for Confidentiality FCC ID：2AXI2ATM3405MOD-WQK To Whom It May Concern: Long Term Confidentiality Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby respectfully request confidential treatment of information accompanying this application as outlined below: ● Block Diagrams ● Schematics ● Operational Description ● Part List The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. We understand that pursuant to Rule 0.457, disclosure of this Application and all accompanying documentation will not be made before the date of the Grant for this application. Short Term Confidentiality Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby respectfully request short-term confidential treatment of information accompanying this application as outlined below until 180 days after the Grant Date of Equipment Authorization in order to ensure sensitive business information remains confidential until the actual marketing of the device: ● External Photos ● Internal Photos ● Test Setup photos ● Users Manuals Respectfully, Applicant’s company name : Atmosic Technologies Applicant’s company address : 2130 Gold Street Suite 200 San Jose, CA95002, USA Signature : Name and Job Title : Frank Ku / VP of Taiwan Design Center E- Mail : [email protected] Te l : 408 359 8859 Fax : 408 359 8859

Label on the module 7 mm 10 mm Model name:ATM3405MOD-WQK-I FCCID:2AXI2ATM3405MOD-WQK

RADIO EXPOSURE TEST REPORT Report No. : FA650409 TEL : 886-3-656-9065 Page Number : 2 of 7 FAX : 886-3-656-9085 Issued Date : Jun. 11, 2026 Report Template No.: CB-A1_1 Ver1.1 Report Version : 01 Table of Contents History of this test report ................................................................................................................................. 3 Summary of Test Result................................................................................................................................... 4 1 General Description ............................................................................................................................. 5 1.1 EUT General Information ....................................................................................................................... 5 1.2 Antenna Information ............................................................................................................................... 5 1.3 Accessories ............................................................................................................................................ 5 1.4 Testing Location ..................................................................................................................................... 5 2 Maximum Permissible Exposure ........................................................................................................ 6 2.1 Limit of Maximum Permissible Exposure ............................................................................................... 6 2.2 MPE Calculation Method ........................................................................................................................ 6 2.3 Calculated Result and Limit .................................................................................................................... 7 Photographs of EUT v01 RADIO EXPOSURE TEST REPORT Report No. : FA650409 TEL : 886-3-656-9065 Page Number : 3 of 7 FAX : 886-3-656-9085 Issued Date : Jun. 11, 2026 Report Template No.: CB-A1_1 Ver1.1 Report Version : 01 History of this test report Report No. Version Description Issued Date FA650409 01 Initial issue of report Jun. 11, 2026 RADIO EXPOSURE TEST REPORT Report No. : FA650409 TEL : 886-3-656-9065 Page Number : 4 of 7 FAX : 886-3-656-9085 Issued Date : Jun. 11, 2026 Report Template No.: CB-A1_1 Ver1.1 Report Version : 01 Summary of Test Result Report Clause Ref Std. Clause Test Items Result (PASS/FAIL) Remark 2 - Exposure evaluation PA SS - Conformity Assessment Condition: 1. The test results (PASS/FAIL) with all measurement uncertainty excluded are presented against the regulation limits or in accordance with the requirements stipulated by the applicant/manufacturer who shall bear all the risks of non-compliance that may potentially occur if measurement uncertainty is taken into account. 2. The measurement uncertainty please refer to each test result in the chapter "Measurement Uncertainty". Disclaimer: The product specifications of the EUT presented in the test report that may affect the test assessments are declared by the manufacturer who shall take full responsibility for the authenticity. Reviewed by: Sam Chen Report Producer: Wendy Pan RADIO EXPOSURE TEST REPORT Report No. : FA650409 TEL : 886-3-656-9065 Page Number : 5 of 7 FAX : 886-3-656-9085 Issued Date : Jun. 11, 2026 Report Template No.: CB-A1_1 Ver1.1 Report Version : 01 1 General Description 1.1 EUT General Information RF General Information Evaluation Mode Frequency Range (MHz) Operating Frequency (MHz) Modulation Type Bluetooth 2400-2483.5 2402-2480 LE: GFSK 2404-2478 (Channel Sounding) 1.2 Antenna Information Ant. Port Brand Model Name Antenna Type Connector Gain (dBi) 1 1 WALSIN RFECA3216060A1T Chip Antenna N/A 2.11 For Bluetooth (1TX/1RX): Only Port 1 can be used as transmitting/receiving antenna. Note: The above information was declared by manufacturer. 1.3 Accessories N/A 1.4 Testing Location Testing Location Information Test Lab.：Sporton International Inc. Hsinchu Laboratory Hsinchu ADD: No.8, Ln. 724, Bo’ai St., Zhubei City, Hsinchu County 302010, Taiwan (R.O.C.) (TAF: 3787) TEL: 886-3-656-9065 FAX: 886-3-656-9085 Test site Designation No. TW3787 with FCC. Conformity Assessment Body Identifier (CABID) TW3787 with ISED. RADIO EXPOSURE TEST REPORT Report No. : FA650409 TEL : 886-3-656-9065 Page Number : 6 of 7 FAX : 886-3-656-9085 Issued Date : Jun. 11, 2026 Report Template No.: CB-A1_1 Ver1.1 Report Version : 01 2 Maximum Permissible Exposure 2.1 Limit of Maximum Permissible Exposure (A) Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm²) Averaging Time |E|²,|H|² or S (minutes) 0.3-3.0 614 1.63 *(100) <6 3.0-30 1842/f 4.89/f *(900/f 2 ) <6 30-300 61.4 0.163 1.0 <6 300-1500 - - f/300 <6 1500-100,000 - - 5 <6 (B) Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm²) Averaging Time |E|²,|H|² or S (minutes) 0.3-1.34 614 1.63 *(100) <30 1.34-30 824/f 2.19/f *(180/f 2 ) <30 30-300 27.5 0.073 0.2 <30 300-1500 - - f/1500 <30 1500-100,000 - - 1.0 <30 Note: f = frequency in MHz ; *Plane-wave equivalent power density 2.2 MPE Calculation Method The MPE was calculated at 20 cm to show compliance with the power density limit. The following formula was used to calculate the Power Density: E (V/m) ＝ d GP××30 Power Density: Pd (W/m²) ＝ 377 2 E E ＝ Electric field (V/m) P ＝ RF output power (W) G ＝ EUT Antenna numeric gain (numeric) d ＝ Separation distance between radiator and human body (m) The formula can be changed to Pd ＝ 2 377 30 d GP × ×× RADIO EXPOSURE TEST REPORT Report No. : FA650409 TEL : 886-3-656-9065 Page Number : 7 of 7 FAX : 886-3-656-9085 Issued Date : Jun. 11, 2026 Report Template No.: CB-A1_1 Ver1.1 Report Version : 01 2.3 Calculated Result…

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RADIO TEST REPORT Report No. : FR650409 TEL : 886-3-656-9065 Page Number : 2 of 29 FAX : 886-3-656-9085 Issued Date : Jun. 11, 2026 Report Template No.: CB-A10_6 Ver1.3 Report Version : 01 Table of Contents History of this test report ................................................................................................................................. 3 Summary of Test Result................................................................................................................................... 4 1 General Description ............................................................................................................................. 5 1.1 Information .............................................................................................................................................. 5 1.2 Applicable Standards ............................................................................................................................. 7 1.3 Testing Location Information .................................................................................................................. 7 1.4 Measurement Uncertainty ...................................................................................................................... 8 2 Test Configuration of EUT ................................................................................................................... 9 2.1 Test Channel Mode ................................................................................................................................ 9 2.2 The Worst Case Measurement Configuration ...................................................................................... 10 2.3 EUT Operation during Test .................................................................................................................. 10 2.4 Accessories .......................................................................................................................................... 11 2.5 Support Equipment ............................................................................................................................... 11 2.6 Test Setup Diagram ............................................................................................................................. 12 3 Transmitter Test Result ..................................................................................................................... 14 3.1 AC Power-line Conducted Emissions .................................................................................................. 14 3.2 DTS Bandwidth..................................................................................................................................... 16 3.3 Maximum Conducted Output Power .................................................................................................... 17 3.4 Power Spectral Density ........................................................................................................................ 20 3.5 Emissions in Non-restricted Frequency Bands .................................................................................... 22 3.6 Emissions in Restricted Frequency Bands ........................................................................................... 23 4 Test Equipment and Calibration Data .............................................................................................. 27 Appendix A. Test Results of AC Power-line Conducted Emissions Appendix B. Test Results of DTS Bandwidth Appendix C. Test Results of Maximum Conducted Output Power Appendix D. Test Results of Power Spectral Density Appendix E. Test Results of Emissions in Non-restricted Frequency Bands Appendix F. Test Results of Emissions in Restricted Frequency Bands Appendix G. Test Photos Photographs of EUT v01 RADIO TEST REPORT Report No. : FR650409 TEL : 886-3-656-9065 Page Number : 3 of 29 FAX : 886-3-656-9085 Issued Date : Jun. 11, 2026 Report Template No.: CB-A10_6 Ver1.3 Report Version : 01 History of this test report Report No. Version Description Issued Date FR650409 01 Initial issue of report Jun. 11, 2026 RADIO TEST REPORT Report No. : FR650409 TEL : 886-3-656-9065 Page Number : 4 of 29 FAX : 886-3-656-9085 Issued Date : Jun. 11, 2026 Report Template No.: CB-A10_6 Ver1.3 Report Version : 01 Summary of Test Result Report Clause Ref Std. Clause Test Items Result (PASS/FAIL) Remark 1.1.2 15.203 Antenna Requirement PA SS - 3.1 15.207 AC Power-line Conducted Emissions PA SS - 3.2 15.247(a) DTS Bandwidth PA SS - 3.3 15.247(b) Maximum Conducted Output Power PA SS - 3.4 15.247(e) Power Spectral Density PA SS - 3.5 15.247(d) Emissions in Non-restricted Frequency Bands PA SS - 3.6 15.247(d) Emissions in Restricted Frequency Bands PA SS - Conformity Assessment Condition: 1. The test results (PASS/FAIL) with all measurement uncertainty excluded are presented against the regulation limits or in accordance with the requirements stipulated by the applicant/manufacturer who shall bear all the risks of non-compliance that may potentially occur if measurement uncertainty is taken into account. 2. The measurement uncertainty please refer to each test result in the chapter "Measurement Uncertainty". Disclaimer: 1. The product specifications of the EUT presented in the test report that may affect the test assessments are declared by the manufacturer who shall take full responsibility for the authenticity. 2. The test configuration, test mode and test software were written in this test report are declared by the manufacturer. Reviewed by: Sam Chen Report Producer: Wendy Pan RADIO TEST REPORT Report No. : FR650409 TEL : 886-3-656-9065 Page Number : 5 of 29 FAX : 886-3-656-9085 Issued Date : Jun. 11, 2026 Report Template No.: CB-A10_6 Ver1.3 Report Version : 01 1 General Description 1.1 Information 1.1.1 RF General Information Frequency Range (MHz) Bluetooth Mode Ch. Frequency (MHz) Channel Number Remark 2400-…

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Antenna Report WALSIN Model: RFECA3216060A1T Antenna Manufacture Walsin Technology Corporation Address 566-1, Ko-Shi Road , Yang-Mei, Tao-Yuan, 32668, Taiwan Antenna Specification Antenna Type Chip Antenna Peak Gain 2.11dbi Frequency 2402-2480 MHz Test / Position Gain /Free Space Frequency 2402 2403 2441 2480 Ant. Port Input Pwr. (dB ) 0 0 0 0 Tot. Rad. Pwr. (dB ) -2.76 -2.73 -1.96 -2.23 Peak EIRP (dB ) 0.88 0.89 1.88 2.11 Directivity (dBi) 3.63 3.62 3.84 4.33 Efficiency (dB) -2.76 -2.73 -1.96 -2.23 Efficiency (%) 52.99 53.33 63.66 59.87 Gain (dBi) 0.88 0.89 1.88 2.11 NHPRP ±Pi/4 (dB ) -4.21 -4.19 -3.39 -3.65 NHPRP ±Pi/6 (dB ) -5.72 -5.69 -4.90 -5.16 2402MHz 2403MHz 2441MHz 2480MHz