2A45K-TR18CDTurntable Player

Dosound Electronics Co., Ltd 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Dosound Electronics Co., Ltd Address: No.88 Ronghua Road, Duozhu, Huidong town, Huizhou city, China Product Name: Turntable Player FCCID: 2A45K-TR18CD Model(s): TR-18CD,TR-18CD-SP,TR-18CD-BT,TR-18DAB,TR-18DAB-SP,TR-18XX(XX represents the color,they can be replaced by letter from A to Z or blank) 2.911(d)(5)(i) Equipment Type We, [Dosound Electronics 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: Molly Zou Date:2026/08/04 Title and Company name: Dosound Electronics 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

Dosound Electronics Co., Ltd 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Dosound Electronics Co., Ltd Address: No.88 Ronghua Road, Duozhu, Huidong town, Huizhou city, China Product Name: Turntable Player FCCID: 2A45K-TR18CD Model(s): TR-18CD,TR-18CD-SP,TR-18CD-BT,TR-18DAB,TR-18DAB-SP,TR-18XX(XX represents the color,they can be replaced by letter from A to Z or blank) 2.911(d)(5)(ii) Applicant filing We, [Dosound Electronics Co., Ltd] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is 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: Molly Zou Date:2026/08/04 Title and Company name: Dosound Electronics 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

Rev 1/26/2023 Dosound Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 08‐04‐2026 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2A45K‐TR18CD Applicant FRN: 0032029514 [ Dosound Electronics Co., Ltd] certifies that, as of the date of the filing of the application, [FCC US Agent, LLC] is our designated U.S. agent for service of process for the above referenced FCC ID. [ Dosound Electronics Co., Ltd] 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. [FCC US Agent, LLC] accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708‐571‐3148 Email: [email protected] Sincerely, [ Dosound Electronics Co., Ltd] FCC US Agent, LLC [Molly Zou] Tim Payne

Dosound Electronics Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026/08/04 Subject; Request for Confidentiality FCC ID: 2A45K-TR18CD 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); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to 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: Molly Zou Title:

Size: 60*30mm Label location

FCC ID:2A45K-TR18CD RF EXPOSURE EVALUATION 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) Limits for Maximum Permissible Exposure (MPE) f = frequency in MHz. * = Plane-wave equivalent power density. 11.1 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R 2 ) Where Pd= Power density in mW/cm 2 Pout=output power to antenna in mW G= Numeric gain of the antenna relative to isotropic antenna Pi=3.1416 R= distance between observation point and center of the radiator in cm Pd the limit of MPE, 1mW/cm 2 ,If we know the maximum gain of the nd total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. RF Exposure Information: The radiated output power of this device meets the limits of FCC/IC radio frequency exposure limits.This device should be operated with a minimum separation distance of 20cm (8 inches) between the equipment and a person's body. 11.2 Measurement Result BT Antenna gain: -0.58 dBi modulation Channel Freq. (MHz) Measured power (dBm) Tune-up power (dBm) Max tune- up power (dBm) Antenna Gain Numeric Evaluation result (mW/cm2 ) Power density Limits (mW/cm2 ) GFSK 2402 0.44 -1 to 1 1 0.87 0.0002 1 2441 0.85 -1 to 1 1 0.87 0.0002 1 2480 0.77 -1 to 1 1 0.87 0.0002 1 pi/4- DQPSK 2402 1.35 0 to 2 2 0.87 0.0003 1 2441 1.76 0 to 2 2 0.87 0.0003 1 2480 1.7 0 to 2 2 0.87 0.0003 1 8DPSK 2402 1.73 0 to 2 2 0.87 0.0003 1 2441 2.17 1 to 3 3 0.87 0.0003 1 2480 2.12 1 to 3 3 0.87 0.0003 1

No.：BCTC/KJ-RF-ICT-001 Page 1 of 84 Edition：B.1 TEST REPORT Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC2607644980E Applicant: Dosound Electronics Co., Ltd Product Name: Turntable Player Test Model: TR-18CD Tested Date: 2026-07-22 to 2026-08-01 Issued Date: 2026-08-05 Report No.: BCTC2607644980E No.：BCTC/KJ-RF-ICT-001 Page 2 of 84 Edition：B.1 FCC ID: 2A45K-TR18CD 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 BCTC 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. Product Name: Turntable Player Trademark: N/A Model/Type Reference: TR-18CD,TR-18CD-SP,TR-18CD-BT,TR-18DAB,TR-18DAB-SP,TR-18XX(XX represents the color,they can be replaced by letter from A to Z or blank) Prepared For: Dosound Electronics Co., Ltd Address: No.88 Ronghua Road, Duozhu, Huidong town, Huizhou city, China Manufacturer: Dosound Electronics Co., Ltd Address: No.88 Ronghua Road, Duozhu, Huidong town, Huizhou city, China Prepared By: Shenzhen BCTC Technology Co., Ltd. Address: Room 101M, Unit 1, Building1, Pengyuan, No.18, Lilang Road, Shanglilang, Nanwan Subdistrict, Longgang District, Shenzhen, Guangdong, China. Sample Received Date: 2026-07-22 Sample Tested Date: 2026-07-22 to 2026-08-01 Report No.: BCTC2607644980E Test Standards 47 CFR Part 15 Subpart C（clause 15.247） ANSI C63.10-2020 Test Results PASS Remark: This is Bluetooth Classic radio test report. Prepared by : Reviewer by : Approved by: Mike Zheng Louis Zeng Sewen Guo Report No.: BCTC2607644980E No.：BCTC/KJ-RF-ICT-001 Page 3 of 84 Edition：B.1 Table of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information and Test Setup ...................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List ........................................................................................................ 10 4.5 Test Mode ........................................................................................................... 10 4.6 Table Of Parameters Of Text Software Setting ................................................... 11 5. Test Facility And Test Instrument Used ............................................................... 12 5.1 Test Facility ......................................................................................................... 12 5.2 Test Instrument Used .......................................................................................... 12 6. Conducted Emissions .......................................................................................... 15 6.1 Block Diagram Of Test Setup .............................................................................. 15 6.2 Limit .................................................................................................................... 15 6.3 Test procedure .................................................................................................... 15 6.4 EUT operating Conditions ................................................................................... 15 6.5 Test Result .......................................................................................................... 16 7. Radiated emissions ............................................................................................. 18 7.1 Block Diagram Of Test Setup .............................................................................. 18 7.2 Limit .................................................................................................................... 19 7.3 Test procedure .................................................................................................... 20 7.4 EUT operating Conditions ................................................................................... 21 7.5 Test Result .......................................................................................................... 22 8. Radiated Band Emission Measurement and Restricted Bands of Operation ...... 28 8.1 Block Diagram Of Test Setup .............................................................................. 28 8.2 Limit .................................................................................................................... 28 8.3 Test procedure .................................................................................................... 29 8.4 EUT operating Conditions ................................................................................... 29 8.5 Test Result .......................................................................................................... 30 9. Spurious RF Conducted Emissions ..................................................................... 31 9.1 Block Diagram Of Test Setup .............................................................................. 31 9.2 Limit .................................................................................................................... 31 9.3 Test procedure .................................................................................................... 31 9.4 Test Result .......................................…

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

Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26-0.76-0.58-5.25-2.46-1.86 MAX. Gain -0.58dB PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) No. 333, Kexing Road, Xiangzhou District, Zhuhai, Guangdong 519000, China Address: Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.