2BVSR-V4TXHyper Fusion Transmitter

Dybala Tech Co., Ltd. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [April 22, 2026] U.S. Agent Designation [Dybala Tech 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: 2BMPO-S680 Name and company of U.S. agent: [GLOCERTS TECHNOLOGY INC] Physical U.S. address of agent: [19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507] FRN of U.S. agent: [0036339737] Email address of U.S. agent: [[email protected]] Telephone of U.S.agent: (626) 588-8039 [GLOCERTS TECHNOLOGY INC] acknowledges their obligation to accept service of process on behalf of [Dybala Tech Co., Ltd.]. [Dybala Tech Co., Ltd.] with the FRN [0036393866] accepts its obligation to maintain an agent for service of process in the United States for no less than 1 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. Sincerely, Signature Signature [Zhanpeng Zhou] [Huiying Fan] [CEO] [Director] [Dybala Tech Co., Ltd.] [GLOCERTS TECHNOLOGY INC]

Dybala Tech Co., Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Dybala Tech Co., Ltd. Address: Room 601, Unit 2, Building 13, New Century Yilongwan, No. 2, Yilong East Road, Gaobu Town, Dongguan City, Guangdong Province Product Name: Multi-Function Cassette Player FCC ID: 2BMPO-S680 Model(s): S480, RA-S480, S400, RA-S400, S580, RA-S580, S680, RA-S680 2.911(d)(5)(i) Equipment Type We, [Dybala Tech Co., Ltd.] (“the applicant”) certify that the equipment for which authorization is sought through certification is not:  Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules.  Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: Zhanpeng Zhou Date: April 22, 2026 Title and Company name: CEO / Dybala Tech Co., Ltd. NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Dybala Tech Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.2 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Dybala Tech Co., Ltd. Address: Room 601, Unit 2, Building 13, New Century Yilongwan, No. 2, Yilong East Road, Gaobu Town, Dongguan City, Guangdong Province Product Name: Multi-Function Cassette Player FCC ID: 2BMPO-S680 Model(s): S480, RA-S480, S400, RA-S400, S580, RA-S580, S680, RA-S680 2.911(d)(5)(ii) Applicant filing We, [Dybala Tech Co., Ltd.] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Zhanpeng Zhou Date: April 22, 2026 Title and Company name: CEO / Dybala Tech Co., Ltd. NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Dybala Tech Co., Ltd. Agent Authorization Company: Dybala Tech Co., Ltd. Address: Room 601, Unit 2, Building 13, New Century Yilongwan, No. 2, Yilong East Road, Gaobu Town, Dongguan City, Guangdong Province Product Name: Multi-Function Cassette Player Model Number(s): S480, RA-S480, S400, RA-S400, S580, RA-S580, S680, RA- S680 Product Description: Multi-Function Cassette Player We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: April 22, 2026 Name: Zhanpeng Zhou Title: CEO Company: Dybala Tech Co., Ltd.

Dybala Tech Co., Ltd. Model Difference Data：April 22, 2026 Product description: Multi-Function Cassette Player Model name: S480, RA-S480, S400, RA-S400, S580, RA-S580, S680, RA- S680 Trade Name: N/A FCC ID: 2BMPO-S680 All the model are the same circuit and RF module, only the appearance is different. Regards Sincerely Client’s signature : Client’s name / title : Zhanpeng Zhou（CEO） Contact information / address：Room 601, Unit 2, Building 13, New Century Yilongwan, No. 2, Yilong East Road, Gaobu Town, Dongguan City, Guangdong Province

Dybala Tech Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: April 22, 2026 Subject; Request for Confidentiality FCC ID: 2BMPO-S680 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Zhanpeng Zhou Title: CEO

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 3 Model: S480 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 3 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 3

FCC ID LABEL: Label Location: FCC ID: 2BMPO-S680 Model No.: S480

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 3 Model: S480 Internal Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 3 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 3 ANT

Shenzhen CTB Testing Co., Ltd. FCC ID: 2BMPO-S680 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(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 When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. EDR: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 1.857 1.53 1±1 2.00 1.58 <5 0.49127 3.00 YES 2.441 2.044 1.60 2±1 3.00 2.00 <5 0.62347 3.00 YES 2.480 1.527 1.42 1±1 2.00 1.58 <5 0.49918 3.00 YES 2.402 2.6 1.82 2±1 3.00 2.00 <5 0.61847 3.00 YES 2.441 2.75 1.88 2±1 3.00 2.00 <5 0.62347 3.00 YES 2.480 2.156 1.64 2±1 3.00 2.00 <5 0.62843 3.00 YES 2.402 2.938 1.97 2±1 3.00 2.00 <5 0.61847 3.00 YES 2.441 3.045 2.02 3±1 4.00 2.51 <5 0.78490 3.00 YES 2.480 2.397 1.74 2±1 3.00 2.00 <5 0.62843 3.00 YES GFSK π /4DQPSK 8DQPSK Conclusion: For the max result : 0.78490≤ FCC Limit 3.0 for 1g SAR.

Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2 450MHz2500MHz2400MHz 2 450MHz 2500MHz Center Frequency -1.73-0.84-0.68-6.15-3.70-2.32 MAX. Gain -0.68 PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.73178 -30.0815 -8.48713 2450 -0.845801 -38.5605 -7.88012 2500 -0.685586 -24.0318 -6.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -6.1530 -24.1420 -13.0295 2450 -3.7054 -26.5836 -10.6700 2500 -2.32122 -30.4301 -9.70536 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Report Tel: 4008-707- 283Web: http://www.ctb-lab.net Page 1 of 55 TEST REPORT Compiled by:Reviewed by:Approved by: KaiChenMartinFengBin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name:Multi -Function Cassette Player FCC ID: 2BMPO-S680 Trademark:N/A Model Number:S480, RA -S480, S400,RA-S400, S580,RA-S580, S680,RA-S680 Prepared For:Dybala Tech Co., Ltd. Address: Room 601, Unit 2, Building 13, New CenturyYilongwan, No. 2, Yilong East Road, Gaobu Town, Dongguan City, Guangdong Province Manufacturer: Dybala Tech Co., Ltd. Address: Room 601, Unit 2, Building 13, New Century Yilongwan, No. 2, Yilong East Road, Gaobu Town, Dongguan City, Guangdong Province Prepared By:Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F.,BuildingA,No.26,XinheRoad,Xinqiao,XinqiaoStreet,Bao'anDistrict, Shenzhen,Guangdong,China Sample Received Date:Sep. 17, 2025 Sample tested Date: Sep. 17, 2025 to Apr . 2 9, 202 6 Issue Date:Apr . 29, 2026 Report No.: CTB25091705704RF01 Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2020 Test ResultsPASS Remark:This is Bluetoothradio test report. Shenzhen CTB Testing Technology Co., Ltd. ReportNo.: CTB25091705704RF01 Report Tel: 4008-707- 283 Web: http://www.ctb-lab. netPage 2 of 55 TABLE OF CONTENT Test Report DeclarationPage 1. VERSION . ......................................................................... 4 2. TEST SUMMARY ................................................................... 5 3. MEASUREMENT UNCERTAINTY ..................................................... 6 4. PRODUCT INFORMATION AND TEST SETUP .......................................... 7 4.1 Product Information .................................................................... 7 4.2 Test Setup Configuration ............................................................... 7 4.3 Support Equipment .................................................................... 7 4.4 Channel List .......................................................................... 8 4.5 Test Mode ............................................................................ 8 4.6 Test Environment ...................................................................... 8 5. TEST FACILITYAND TEST INSTRUMENT USED ....................................... 9 5.1 Test Facility ........................................................................... 9 5.2 Test Instrument Used .................................................................. 9 6. AC POWER LINE CONDUCTED EMISSION . ........................................... 12 6.1 Block Diagram Of Test Setup .......................................................... 12 6.2 Limit ................................................................................ 12 6.3 Test procedure ....................................................................... 12 6.4 Test Result .......................................................................... 14 7. RADIATED SPURIOUS EMISSION................................................... 16 7.1Block Diagram Of Test Setup .......................................................... 16 7.2 Limit ................................................................................ 16 7.3 Test procedure ....................................................................... 17 7.4 Test Result .......................................................................... 18 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .......................... 27 8.1 Block Diagram Of Test Setup .......................................................... 27 8.2 Limit ................................................................................ 27 8.3 Test procedure ....................................................................... 27 8.4 Test Result .......................................................................... 28 9. COUDUCTED PEAK OUTPUT POWER . .............................................. 35 9.1 Block Diagram Of Test Setup .......................................................... 35 9.2 Limit ................................................................................ 35 9.3 Test procedure ....................................................................... 35 9.4 Test Result .......................................................................... 35 10.20DB OCCUPIED BANDWIDTH. ..................................................... 39 10.1 Block Diagram Of Test Setup ......................................................... 39 10.2 Limit ............................................................................... 39 10.3 Test procedure ...................................................................... 39 10.4 Test Result ......................................................................... 39 11.CARRIER FREQUENCIES SEPARATION ............................................. 43 11.1 Block Diagram Of Test Setup ......................................................... 43 11.2 Limit ............................................................................... 43 11.3 Test procedure ...................................................................... 43 11.4 Test Result ......................................................................... 43 12.HOPPING CHANNEL NUMBER ...................................................... 47 12.1 Block Diagram Of Test Setup ...................................…

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: S480 Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions