JFZDT3207DF2DESK STAND TRANSMITTER

Audio-Technica U.S., Inc. 1221 Commerce Drive, Stow, Ohio 44224, U.S.A Tel. +1-330-686-2600 Date: March 16, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(7) FCC US Agent Letter of Attestation FCC ID: JFZDT3207DF2 Grantee FRN: 0028730448 To whom it may concern: This letter is to confirm that we have accepted the responsibility to act as US Agent on behalf of Audio-Technica Corporation (“the applicant”) for the above referenced FCC ID. We are aware of the requirements and responsibilities of the applicant’s agent for service of process as outlined in the FCC section §2.911(d)(7) and Report and Order FCC 22-84 paragraph 63. FCC US Agent Contact Person: James Lappin Company Name: Audio-Technica U.S., Inc. FRN: 0004315917 Company Address: 1221 Commerce Dr Stow, OH 44224 United States Email: [email protected] Sincerely yours, James Lappin Audio-Technica U.S., Inc.

ATW-DT3207 LABEL_MODEL_DT3207DF2J W60 mm x H25 mm 234 701950-01-01 ver.1 2026.02.15 FCC ID font size: 4.5pt

UL Japan, Inc. Ise EMC Lab 4383-326 Asama-cho, Ise-shi, Mie 516-0021 Japan T:: +81.596.24.8999 / F:: +81.596.24.8124 / W:: japan.ul.com March 16, 2026 FCC ID: JFZDT3207DF2 To whom it may concern, We, UL Japan, Inc, hereby declare that DESK STAND TRANSMITTER, model: ATW-DT3207DF2 (FCC ID: JFZDT3207DF2) of Audio-Technica Corporation is exempt from RF exposure SAR evaluation because the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold P th (mW) described in the following formula according to the Code of Federal Regulation title 47 section 1.1307(b)(3)(i)(B). This method is used at separation distances d (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive) for single RF sources. P th is given by: 푃 ௧௛ ሺ mW ሻ ൌ൜ 퐸푅푃 ଶ଴ ୡ୫ ሺ푑 / 20 cmሻ ௫ 퐸푅푃 ଶ଴ ୡ୫ 푑൑20 cm 20 cm ൏ 푑 ൑ 40 cm Where 푥ൌെlog ଵ଴ ቆ 60 퐸푅푃 ଶ଴ ୡ୫ ඥ 푓 ቇand 푓 is in GHz 퐸푅푃 ଶ଴ ୡ୫ ሺ mW ሻ ൌቊ 2040푓 3060 0.3 GHz൑푓൏1.5 GHz 1.5 GHz൑푓൑6 GHz When the minimum separation distance is shorter than 0.5 cm, 0.5 cm is applied. The SAR evaluation exemption threshold is calculated as below. Pth (mW)1240.065(dBm)13.01 f (GHz)0.607875(mW)20.00 ERP 20 cm (mW) 1240.065-3.737 d (cm)20.09.27 (dBm)7.13 (mW)5.17 The Maximum time-averaged power or ERP whichever greater is 20 mW. Conducted Power Antenna Gain (dBi) EIRP (dBm) ERP Thank you for your attention to this matter. Satofumi Matsuyama Engineer

ATW-DT3207_DF2 Antenna Report Specification ModelATW-DT3207_DF2 Antenna TypeAntenna: FPC Antenna Impedance50Ω Frequency Range470.125MHz ‒ 607.875MHz Gain-3.737dBi (Peak) ManufacturerShanghai Ronghan Electronic Technology Co., Ltd 470.125MHz ① ② ③ 539.000MHz ① ② ③ 607.875MHz ① ② ③ Test Facility Test SiteAudio-Technica Fukui Inc. Test SoftwareTY2100AM (TOYO Corporation) Date18/1/2026 MeasurerTakahiro Sengoku Test Equipment EquipmentManufacturerModelCal. Date Cal. Due Signal GeneratorROHDE&SCHWARZSMB 100A09/6/202509/6/2028 Test ReceiverKEYSIGHTN9038 N04/6/202504/6/2026 AntennaSCHWARZBECKVULB916830/5/202530/5/2026 Reference Antenna SCHWARZBECKUHALP9108-A30/5/202530/5/2028 Test Procedure 1. The reference antenna with known antenna gain was placed on the top of the turntable 1.5 meter above ground and connected to the Signal Generator. 2. The receiving antenna was placed 3 meters far away from the center of the turntable and connected to the Spectrum analyzer. 3. Turn on the Signal analyzer output. The turntable was rotated by 360 degrees and the spectrum analyzer record the input level for each degree. 4. The maximum reading is the antenna gain of the reference antenna. 5. Replace the reference antenna with EUT. 6. Turn on the Signal analyzer output. The turntable was rotated by 360 degrees and the spectrum analyzer record the input level for each degree. 7. Subtract the maximum reading of the reference antenna and the measured reading of the EUT to obtain the radiation pattern of the antenna. 8. The peak reading is the antenna gain of EUT.

Test Report No. 15951642H-B-R1 Page 1 of 34 UL Japan, Inc. Ise EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 Japan / +81-596-24-8999 RADIO TEST REPORT Test Report No. 15951642H-B-R1 Customer Audio-Technica Corporation Description of EUT DESK STAND TRANSMITTER Model Number of EUT ATW-DT3207DF2 FCC ID JFZDT3207DF2 Test Regulation FCC Part 15 Subpart C Test Result Complied Issue Date March 25, 2026 Remarks - Representative test engineer Approved by Tomoya Sone Engineer Satofumi Matsuyama Engineer CERTIFICATE 5107.02 The testing in which "Non-accreditation" is displayed is outside the accreditation scopes in UL Japan, Inc. There is no testing item of "Non-accreditation". Report Cover Page - Form-ULID-003532 (DCS:13-EM-F0429) Issue# 26.0 Test Report No. 15951642H-B-R1 Page 2 of 34 UL Japan, Inc. Ise EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 Japan / +81-596-24-8999 ANNOUNCEMENT REVISION HISTORY Revision Test Report No. Date Page Revised Contents - (Original) 15951642H-B March 12, 2026 - 1 15951642H-B-R1 March 25, 2026 Clause 4.2 -Added the following item and cable, including their detailed information: ・Item D (Nexode mini 20W Charger) ・Cable No. 2 (USB Cable) • This test report shall not be reproduced in full or partial, without the written approval of UL Japan, Inc. • The results in this report appl y only to the sample tested. (Laboratory was not involved in sampling.) • This sample tested is in compliance with the limits of the above re gulation. • The test results in this test report are traceable to the national or international standards. • This test report must not be used by the customer to claim product certification, approval, or endorsement b y the A2LA accreditation body. • This test report covers Radio technical requirements. It does not cover administrative issues such as Manual or non-Radio test related Requirements. (if applicable) • The all test items in this test report are conducted b y UL Japan, Inc. Ise EMC Lab. • The opinions and the interpretations to the result of the description in this report are outside scopes where UL Japan, Inc. has been accredited. • The information provided b y the customer for this report is identified in SECTION 1. • The laboratory is not responsible for information provided by the customer which can impact the validit y of the results. • For any test report referred in this report, the latest version (including any revisions) is always referred to. • If the latest version is a revision, it replaces the previous version. See the table below for revisions and versions. Test Report No. 15951642H-B-R1 Page 3 of 34 UL Japan, Inc. Ise EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 Japan / +81-596-24-8999 Reference: Abbreviations (Including words undescribed in this report) A2LA The American Association for Laboratory Accreditation ICES Interference-Causing Equipment Standard AC Alternating Current IEC International Electrotechnical Commission AFH Adaptive Frequency Hopping IEEE Institute of Electrical and Electronics En gineers AM Amplitude Modulation IF Intermediate Frequency Amp, AMP Amplifier ILAC International Laboratory Accreditation Conference ANSI American National Standards Institute ISED Innovation, Science and Economic Develo pment Canada Ant, ANT Antenna ISO International Organization for Standardization AP Access Point JAB Japan Accreditation Board ASK Amplitude Shift Keying LAN Local Area Network Atten., ATT Attenuator LIMS Laboratory Information Management S ystem AV Average MCS Modulation and Coding Scheme BPSK Binary Phase-Shift Keying MRA Mutual Recognition Arrangement BR Bluetooth Basic Rate N/A Not Applicable BT Bluetooth NIST National Institute of Standards and Technolo gy BT LE Bluetooth Low Energy NS No signal detect. BW BandWidth NSA Normalized Site Attenuation Cal Int Calibration Interval NVLAP National Voluntary Laboratory Accreditation Pro gram CCK Complementary Code Keying OBW Occupied Band Width Ch., CH Channel OFDM Orthogonal Frequency Division Multiplexing CISPR Comite International Special des Perturbations Radioelectri ques P/M Power meter CW Continuous Wave PCB Printed Circuit Board DBPSK Differential BPSK PER Packet Error Rate DC Direct Current PHY Physical Layer D-factor Distance factor PK Peak DFS Dynamic Frequency Selection PN Pseudo random Noise DQPSK Differential QPSK PRBS Pseudo-Random Bit Sequence DSSS Direct Sequence Spread Spectrum PSD Power Spectral Density EDR Enhanced Data Rate QAM Quadrature Amplitude Modulation EIRP, e.i.r.p. Equivalent Isotropically Radiated Power QP Quasi-Peak EMC ElectroMagnetic Compatibility QPSK Quadri-Phase Shift Keying EMI ElectroMagnetic Interference RBW Resolution Band Width EN European Norm RDS Radio Data System ERP, e.r.p. Effective Radiated Power RE Radio Equipment EU European Union RF Radio Frequency EUT Equipment Under Test RMS Root Mean Square Fac. Factor RSS Radio Standards Specifications FCC Federal Communications Commission Rx Receiving FHSS Frequency Hopping Spread Spectrum SA, S/A Spectrum Analyzer FM Frequency Modulation SG Signal Generator Freq. Frequency SVSWR Site-Voltage Standing Wave Ratio FSK Frequency Shift Keying TR Test Receiver GFSK Gaussian Frequency-Shift Keying Tx Transmitting GNSS Global Navigation Satellite System VBW Video BandWidth GPS Global Positioning System Vert. Vertical Hori. Horizontal WLAN Wireless LAN Test Report No. 15951642H-B-R1 Page 4 of 34 UL Japan, Inc. Ise EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 Japan / +81-596-24-8999 CONTENTS PAGE SECTION 1: Customer Information ......................................................................................... 5 SECTION 2: Equipment Under Test (EUT) .............................................................................. 5 SECTION 3: Test Summary ...................................................................................................... 6 SECTION 4: Operation of EUT during testing ................................................…

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