2BTP7-ARTIXCL750Headphone

Digiorange Inc Covered Equipment Certification Attestation Letter 1/5/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2BTP7-ARTIXCL750 Digiorange Inc (“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. Digiorange Inc (“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. Digiorange Inc (“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: Gregoriy Krakovskiy Title: President Company Name: Digiorange Inc Date: 01/06/2026

Digiorange Inc * 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 1/5/2026 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2BTP7-ARTIXCL750 FRN of applicant: 0037759339 Per section 2.911(d)(7) of the FCC rules, [ Digiorange Inc] (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: Digiorange Inc FCC Registration Number (FRN): 0037759339 Physical U.S. Company Address: 3939 Pembroke rd., Hollywood Florida United States Contact Person: Gregoriy Krakovskiy Agent Email Address: [email protected] 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: Agent Signed (if different from Applicant): Signed: Printed name: Gregoriy Krakovskiy Title: President Company Name: Digiorange Inc Date: 1/5/2026 Signed: Printed name: Gregoriy Krakovskiy Title: President Company Name: Digiorange Inc Date: 1/5/2026

DATE: 01/06/2026 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 Digiorange Inc (3939 Pembroke rd., Hollywood Florida United States ) (Applicant Name and address) Signed: Printed name: Gregoriy Krakovskiy Title: President Company Name: Digiorange Inc Date: 01/06/2026

Date 01/06/2026 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: Gregoriy Krakovskiy Title: President Company Name: Digiorange Inc Date: 01/06/2026

DATE 01/06/2026 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: ___ 2BTP7-ARTIXCL750 ______ Product Name: ___ Headphone___ 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: Gregoriy Krakovskiy Title: President Company Name: Digiorange Inc Date: 01/06/2026

DATE : 01/06/2026 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2BTP7-ARTIXCL750 Product Name: Headphone Request for Short-Term Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission rules, and in accordance with the FCC Public notice dated June 15, 2004 (DA 04-1705), we hereby request short-term confidentiality for the following items prior to marketing the device.:  Test Setup Photos  External Photos  Internal Photos  User Manual The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Signed: Printed name: Gregoriy Krakovskiy Title: President Company Name: Digiorange Inc Date: 01/06/2026

Label Location Label Size: 20*1 5mm FCC ID: 2BTP7-ARTIXCL750

RF EXPOSURE EVALUATION FCC ID: 2BTP7-ARTIXCL750 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. BT: Channel (MHz) Maximum output power (dBm) Tune up tolerance (dBm) Max Tune Up Power (dBm) Distance (mm) Calculation results Limit Operating Mode 2402 0.32 0.32±1 1.32 5 0.420 3 BT 2441 -0.18 -0.18±1 0.82 5 0.377 3 2480 -2.04 -2.04±1 -1.04 5 0.248 3 2402 1.14 1.14±1 2.14 5 0.507 3 2441 0.62 0.62±1 1.62 5 0.454 3 2480 -1.17 -1.17±1 -0.17 5 0.303 3 2402 1.47 1.47±1 2.47 5 0.547 3 2441 0.97 0.97±1 1.97 5 0.492 3 2480 -0.82 -0.82±1 0.18 5 0.328 3 Test Results: PASS.

2.4G-2.48G频段板载PIFA天线测试报告 2.4G-2.48GInvertedFAntennaSpecification SPECIFICATIONS Frequency（MHz）2400-2480 PeakGain（dBi） AverageGain（dBi 2.338 ）＞-5.5 VSWR＜3.2 Impedance（Ω）50Ω AntennaTypePlannarInvertedFAntennaonboard PolarizationLinear ManufactureZHUHAIJIELITECHNOLOGYCO.,LTD Address: No.333KexingRoad,NanpingSciencePark,XiangzhouDistrict, Zhuhai TestequipmentHWA-TECH AntennaPhoto&Length(mm) 天线无源S参数： AntennapassiveS-parameters: 驻波比（ VSWR ）、回波损耗（ ReturnLoss ）及史密斯圆图（ Smith ） 天线效率及增益： Antennaefficiencyandgain ： Frequency（MHz）Gain（dBi）Effciency（%）AverageGain（dBi）Efficiency（dB） 24002.33859.39%-2.915-2.263 24101.60349.11%-3.883-3.088 24201.29546.04%-4.014-3.369 24300.38836.89%-4.91-4.331 24400.18734.00%-5.276-4.685 24500.0231.71%-5.431-4.988 24600.50734.88%-5.02-4.575 24700.29131.89%-5.323-4.963 24800.42932.89%-5.195-4.83 Average0.7839.64%-4.66-4.12 Peak2.33859.39%-2.915-2.263 2.34 2.12 1.97 1.74 1.57 1.37 1.14 0.02 -0.14 -0.28 -0.37 -0.48 -0.59 -0.67 -0.78 2480MHz 0.43 0.34 0.27 0.14 0.09 0.01 -0.17

TEST REPORT Report No.: 8337EU011507W Applicant: Digiorange Inc Address: 3939 Pembroke rd., Hollywood Florida United States Product Name: Headphone Model No.: ARTIX CL750 Trademark: Artix FCC ID: 2BTP7-ARTIXCL750 Test Standard(s): 47 CFR Part 15.247 Test Result: Pass Date of Receipt: Dec. 15, 2025 Test Date: Dec. 16, 2025 - Dec. 26, 2025 Date of Issue: Jan. 04, 2026 ISSUED BY: SHENZHEN EU TESTING LABORATORY LIMITED Prepared by: Reviewed and Approved by: Landon Qiu/ Engineer Sally Zhang/ Manager Page 2 of 116 Report No.: 8337EU011507W TRF Version: A01 Revision Record Report Version Issued Date Description Status V0 Jan. 04, 2026 Original Valid Page 3 of 116 Report No.: 8337EU011507W TRF Version: 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 ........................................................................................................................... 8 4 TEST CONFIGURATION .......................................................................................................................... 9 4.1 TEST ENVIRONMENT .......................................................................................................................... 9 4.2 TEST EQUIPMENT .............................................................................................................................. 9 4.3 DESCRIPTION OF SUPPORT UNIT ....................................................................................................... 11 4.4 TEST MODE ..................................................................................................................................... 11 4.5 DESCRIPTION OF CALCULATION ........................................................................................................ 11 4.5.1 Field Strength Calculation .................................................................................................. 11 4.5.2 Disturbance Calculation ..................................................................................................... 11 4.6 MEASUREMENT UNCERTAINTY ......................................................................................................... 12 4.7 DEVIATION FROM STANDARDS .......................................................................................................... 12 4.8 ABNORMALITIES FROM STANDARD CONDITION.................................................................................. 12 5 EVALUATION RESULTS (EVALUATION) .............................................................................................. 13 5.1 ANTENNA REQUIREMENT .................................................................................................................. 13 5.1.1 Test Specification .............................................................................................................. 13 5.1.2 Test Data ........................................................................................................................... 13 6 RADIO SPECTRUM MATTER TEST RESULTS (RF) ............................................................................ 14 6.1 CONDUCTED EMISSION AT AC POWER LINE ...................................................................................... 14 6.1.1 Test Specification .............................................................................................................. 14 6.1.2 E.U.T. Operation ................................................................................................................ 14 6.1.3 Test Setup Diagram ........................................................................................................... 14 6.1.4 Test Data ........................................................................................................................... 14 6.2 20DB BANDWIDTH........................................................................................................................... 17 6.2.1 Test Specification .............................................................................................................. 17 6.2.2 E.U.T. Operation ................................................................................................................ 17 6.2.3 Test Setup Diagram ........................................................................................................... 18 6.2.4 Test Data ........................................................................................................................... 18 6.3 MAXIMUM CONDUCTED OUTPUT POWER ..........................................…

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