2A5QJIDSDPHANTOMProfessional decoder

Abbingdon Global Limited Covered Equipment Certification Attestation Letter 7/3/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2A5QJIDSDPHANTOM Abbingdon Global Limited. (“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. Abbingdon Global Limited. (“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. Abbingdon Global Limited. (“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). Signature Printed Name: Vincent Luke Company: Abbingdon Global Limited Job Title: marketing manager Email: [email protected]

DATE: 2026-07-13 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Dongguan Nore Testing Center Co., Ltd. Room 101, 1101, Building 2, No. 61, Hongmei Section, Wangsha Road, Hongmei Town, Dongguan, Guangdong, People's Republic of 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 Abbingdon Global Limited 79 SCARISBRICK NEW ROAD SOUTHPORT (Applicant Name and address) Vincent Luke marketing manager Abbingdon Global Limited

Abbingdon Global Limited Date: 2026-07-03 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION FCC ID: 2A5QJIDSDPHANTOM 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). Signature Printed Name: Vincent Luke Company: Abbingdon Global Limited Job Title: marketing manager Email: [email protected]

Abbingdon Global Limited Confidentiality Request Letter-FCC (2026/07/03) Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: CONFIDENTIALITY REQUEST FOR (EUT NAME: Professional decoder /MODEL # iDSD PHANTOM AND FCC ID: 2A5QJIDSDPHANTOM) To Whom It May Concern: Pursuant to §0.457(d)(1)(ii) and §0.459 of the Commission’s Rules (47 C.F.R.) and §552 (b)(4) of the Freedom of Information Act, Abbingdon Global Limited. hereby requests that a part of the subject FCC application be held confidential to avoid release of sensitive information of the product to the public. For the product stated above, we request that the following information be withheld from public disclose Exhibits Permanent Confidential Short-Term Confidential Label/Location --- --- Block Diagram Yes --- Schematics Yes --- Test Report(s) --- --- Test Photos --- Yes External Photos --- Yes Internal Photos --- Yes User Manual --- Yes BOM List --- --- Tune Up Power Procedure --- --- Operation Description Yes --- PCB Layout --- --- Software security requirements --- --- Permanent Confidentiality: 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 us and provide unjustified benefits to our competitors Short-Term Confidentiality: We hereby request short-term confidentiality for the product stated above to avoid premature release of sensitive information prior to marketing or release of the product to the public. Release date of short term confidentiality is 180 days from grant date marked Abbingdon Global Limited We are also aware that we are responsible to notify Compliance Testing, LLC in the event information regarding the product or the product is made available to the public. Compliance Testing, LLC will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705 Please contact me if there is any information you may need. Sincerely, Signature Printed Name: Vincent Luke Company: Abbingdon Global Limited Job Title: marketing manager Email: [email protected]

01-01-022-1766-02 iDSD PHANTOM 后面板丝印图档 Ver1.2.0 2026年1月28日 2025/6/23iDSD PHANTOM 后面板丝印图档01-01-022-1766-01 郑守兵/RonSuunyKinPatVer1.1 Changes 张乐军/Todd刘彦青/Edwin 丝印因应面板位置变化进行微调； 授权信息新增Designed by iFi in England. 部分丝印优化 2026/01/28iDSD PHANTOM 后面板丝印图档01-01-022-1766-02郑守兵/RonSuunyKinPatVer1.2.0张乐军/Todd刘彦青/Edwin 授权信息”Designed by iFi in England. “改为”Designed & Engineered in Great Britain.” 删除“OUTPUTS”“INPUTS”中的“S” 技术要求 1、丝印颜色：PANTONE COOL GRAY 8C ；PANTONE 347 C 2、丝印要求：端正整齐，不能有明显歪斜、偏移、残缺、划伤、掉色等现象 3、位置精度：±0.2mm 4、满载我司可靠性/信赖信测试要求 HOST BALANCED Abbingdon Global Limited, 79 Scarisbrick New Road, Southport, UK, PR8 6LJ Designed & Engineered in Great Britain. Assembled in China. Hi-Fi (VAR) Hi-Fi (FIXED) PRO (VAR) PRO (FIXED) AES/EBU M12-X CLOCK IN (10MHz/75Ω) CLOCK OUT (10MHz/75Ω) 10.3mm 6.8mm 99.2mm100.5mm7.2mm 16.7mm69.4mm120.7mm 10.3mm 29.7mm 6.8mm R 210-XXXXXX 안전인증번호: Certi cate No. R-R-iFi-IDSDPHANTOM FCC ID: 2A5QJ IDSDPHANTOM Contains FCC ID: 2A5QJ-IFINEXIS Contains IC: 29493-NEXIS IC: 29493-IDSDPHANTOM

Report No.: NTC2511033F01 Dongguan Nore Testing Center Co., Ltd. Address: Room 101, 1101, Building 2, No. 61, Hongmei Section, Wangsha Road, Hongmei Town, Dongguan, Guangdong, People's Republic of China Web: www.ntc-c.com Tel:+86-769-2202 2444 Fax:+86-769-2202 2799 Page 1 of 11 RF EVALUATION TEST REPORT Applicant........................... : Abbingdon Global Limited Address............................. : 79 SCARISBRICK NEW ROAD SOUTHPORT ENGLAND PR&8 6LJ Manufacturer..................... : Abbingdon Global Limited Address............................. : 79 SCARISBRICK NEW ROAD SOUTHPORT ENGLAND PR&8 6LJ Factory.............................. : Abbingdon Global Limited Address............................. : 79 SCARISBRICK NEW ROAD SOUTHPORT ENGLAND PR&8 6LJ Product Name..................... : Professional decoder Brand Name....................... : iFi Model No. .......................... : iDSD PHANTOM FCC ID.............................. : 2A5QJIDSDPHANTOM Measurement Standard......... : 47 CFR PART 2, Section 2.1091 Receipt Date of Samples....... : November 06, 2025 Date of Tested..................... : November 06, 2025 to May 21, 2026 Date of Report.................... : June 04, 2026 This report shows that above equipment is technically compliant with the requirements of the standards above. All test results in this report apply only to the tested sample(s). Without prior written approval of Dongguan Nore Testing Center Co., Ltd, this report shall not be reproduced except in full. Prepared by Je nny Liu / Project Engineer Approved by Iori Fan / Authorized Signatory Report No.: NTC2511033F01 Page 2 of 11 Table of Contents 1. General Description of EUT ................................................................................................................................ 4 2. Test Facility and Location ................................................................................................................................... 7 3. Applicable Standards and References ................................................................................................................ 8 4. Maximum Permissible Exposure Limit ................................................................................................................ 9 5. RF Exposure Evaluation Results ...................................................................................................................... 11 Report No.: NTC2511033F01 Page 3 of 11 Revision History Report Number Description Issued Date NTC2511033F01 Initial Issue 2026-06-04 Report No.: NTC2511033F01 Page 4 of 11 1. General Description of EUT Product Information Product Name: Professional decoder Main Model Name: iDSD PHANTOM Additional Model Name: N/A Model Difference: N/A S/N: 2511-7042 Brand Name: iFi Hardware version: Not stated Software version: Not stated Rating: DC Port: DC 15V 3.5A Typical Arrangement: Ta bletop I/O Port: Refer to the user manual Accessories Information Adapter: Manufacturer: Powertron Technology Co., Ltd. M/N: LN-1550 Input: AC 100-240V 50/60Hz, 1.5A Output: DC 15V 3.5A Cable: Power cord: 1.50m, unshielded, undetachable, with a ferrite core Other: Remote*1 Additional information Note: N/A Remark: All the information above are provided by the manufacturer. More detailed feature of the EUT please refers to the user manual. Report No.: NTC2511033F01 Page 5 of 11 Technical Specification (2.4G WLAN) Frequency Range: 2412-2462MHz for IEEE 802.11b/g/n(HT20) 2422-2452MHz for IEEE 802.11n(HT40) Modulation Technology: DSSS, OFDM Modulation Type: CCK, DQPSK, DBPSK, QPSK, BPSK, 16-QAM, 64-QAM, Number of Channel: 11 for IEEE 802.11b/g/n(HT20) 7 for IEEE 802.11n(HT40) Channel Space: 5MHz Antenna Type: Dipole antenna Number of Antenna 1 Antenna Gain: 3.99 dBi (Declared by the manufacturer) Technical Specification (2.4G WLAN) ---IOT module Frequency Range: 2412-2462MHz Modulation Technology: DSSS, OFDM Number of Type: CCK, DQPSK, DBPSK, 64-QAM, 16-QAM, QPSK, BPSK Number of Channel: 11 Channel Space: 5MHz Antenna Type: PCB Antenna Number of Antenna 1 Antenna Gain: -1.05 dBi (Declared by the manufacturer) According to the manufacturer, the EUT integrated a certified module which named as iFi IoT Module. According to the manufacturer, the test data of WIFI refer to the module test reports NTC2302443FV00 which issued by Dongguan Nore Testing Center Co., Ltd on July 06, 2023. Report No.: NTC2511033F01 Page 6 of 11 Technical Specification (5G WIFI) Frequency Range: 5180-5240MHz 5260-5320MHz, 5500-5700MHz, 5745-5825MHz Modulation Technology: DSSS, OFDM Modulation Type: BPSK, QPSK for 802.11a 1024QAM, 256QAM, 64QAM, 16QAM, QPSK, BPSK for 802.11n/ac Number of Channel: U-NII-1, U-NII-2A: 4 Channel for 802.11a/n(HT20)/ac(VHT20) 2 Channel for 802.11n(HT40)/ac(VHT40) 1 Channel for 802.11ac(VHT80) U-NII-2C: 11 Channel for 802.11a/n(HT20)/ac(VHT20) 5 Channel for 802.11n(HT40)/ac(VHT40) 2 Channel for 802.11ac(VHT80) U-NII-3: 5 Channel for 802.11a/n(HT20)/ac(VHT20) 2 Channel for 802.11n(HT40)/ac(VHT40) 1 Channel for 802.11ac(VHT80) Antenna Type: Dipole antenna Number of Antenna: 1 Antenna Gain: 4.64 dBi (Declared by the manufacturer) Beamforming Gain: Not support Report No.: NTC2511033F01 Page 7 of 11 2. Test Facility and Location Test Site : Dongguan Nore Testing Center Co., Ltd. (Dongguan NTC Co., Ltd.) Accreditations and Authorizations : The Laboratory has been assessed and proved to be in compliance with CNAS/CL01 Listed by CNAS, August 13, 2018 The Certificate Registration Number is L5795. The Certificate is valid until August 13, 2030 The Laboratory has been assessed and proved to be in compliance with ISO17025 List ed by A2LA, November 01, 2017 The Certificate Registration Number is 4429.01 The Certificate is valid until December 31, 2027 Listed by FCC, November 06, 2017 Test Firm Registration Number: 907417 Listed by Industry Canada, June 08, 2017 The Certificate Registr ation Number. Is 46405-9743A Test Site Location : Room 101, 1101…

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Report No.: NTC2511033FV00 Dongguan Nore Testing Center Co., Ltd. Address: Room 101, 1101, Building 2, No. 61, Hongmei Section, Wangsha Road, Hongmei Town, Dongguan, Guangdong, People's Republic of China Web: www.ntc-c. com Tel:+86-769-2202 2444 Fax:+86-769-2202 2799 Page 1 of 73 FCC RADIO TEST REPORT Applicant........................... : Abbingdon Global Limited Address............................. : 79 SCARISBRICK NEW ROAD SOUTHPORT ENGLAND PR&8 6LJ Manufacturer...................... : Abbingdon Global Limited Address............................. : 79 SCARISBRICK NEW ROAD SOUTHPORT ENGLAND PR&8 6LJ Factory.............................. : Abbingdon Global Limited Address............................. : 79 SCARISBRICK NEW ROAD SOUTHPORT ENGLAND PR&8 6LJ Product Name..................... : Professional decoder Brand Name....................... : iFi Model No. ......................... : iDSD PHANTOM FCC ID................................ : 2A5QJIDSDPHANTOM Measurement Standard........ : 47 CFR FCC Part 15, Subpart C (Section 15.247) Receipt Date of Samples...... : November 06, 2025 Date of Tested.................... : November 06, 2025 to May 21, 2026 Date of Report.................... : June 04, 2026 This report shows that above equipment is technically compliant with the requirements of the standards above. All test results in this report apply only to the tested sample(s). Without prior written approval of Dongguan Nore Testing Center Co., Ltd, this report shall not be reproduced except in full. Prepared by Jenny Liu / Project Engineer Approved by Iori Fan / Authorized Signatory Report No.: NTC2511033FV00 Page 2 of 73 Table of Contents 1. Summary of Test Result ........................................................................................................................................ 4 2. General Description of EUT .................................................................................................................................. 5 3. Test Channels and Modes Detail .......................................................................................................................... 8 4. Configuration of EUT ............................................................................................................................................. 8 5. Modification of EUT ............................................................................................................................................... 8 6. Description of Support Device ............................................................................................................................... 9 7. Test Facility and Location ................................................................................................................................... 10 8. Applicable Standards and References ................................................................................................................ 11 9. Deviations and Abnormalities from Standard Conditions ................................................................................... 11 10. Test Conditions ................................................................................................................................................. 12 11. Measurement Uncertainty ................................................................................................................................. 13 12. Sample Calculations ......................................................................................................................................... 14 13. Test Items and Results ..................................................................................................................................... 15 13.1 Duty cycle ........................................................................................................................................................ 15 13.2 Conducted Emissions Measurement .............................................................................................................. 15 13.3 Maximum Conducted Output Power Measurement ........................................................................................ 21 13.4 6dB Bandwidth Measurement ......................................................................................................................... 25 13.5 Power Spectral Density Measurement ........................................................................................................... 29 13.6 Band Edge and Conducted Spurious Emissions Measurement ..................................................................... 33 13.7 Radiated Spurious Emissions and Restricted Bands Measurement .............................................................. 38 13.8 Antenna Requirement ..................................................................................................................................... 72 14. Test Equipment List........................................................................................................................................... 73 Report No.: NTC2511033FV00 Page 3 of 73 Revision History Report Number Description Issued Date NTC2511033FV00 Initial Issue 2026-06-04 Report No.: NTC2511033FV00 Page 4 of 73 1. Summary of Test Result FCC Rules Description of Test Result Remarks §15.207 (a) AC Power Conducted Emission PASS --- §15.247(b)(3) Maximum Conducted Output Power PASS --- §15.247(a)(2) 6dB Bandwidth PASS --- §15.247(e) Power Spectral Density PASS --- §15.247(d) Band Edge and Conducted Spurious Emissions PASS --- §15.247(d), §15.209, §15.205 Radiated Spurious Emissions and Restricted Bands PASS --- §15.203 Antenna Requirement PASS --- Report No.: NTC2511033FV00 Page 5 of 73 2. General Description of EUT Product Information Product Name: Professional decoder Main Model Name: iDSD PHANTOM Additional Model Name: N/A Model difference: N/A S/N: 2511-7042 Brand Name: iFi Hardware V…

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No. 4, Building 3, Sanli Industrial Park, No. 4 Chuangjian Road, Lijin Community, Hangcheng Subdistrict, Bao'an District, Shenzhen 电话：0755-27492635 传真：0755-27471559 HTTP://WWW.yunxikeji.COM 第 1 页 天 线 规 格 书 Antenna specification for approval 客户名称:东莞凯韵机型： 天线类型:WIFI天线天线频段:2.4G/5.8G 天线料号:V7-332124-000-A制作日期:2026-07-03 Version：A 承 认 签 章 Admit that signature 云 希 承 认 Confirmation Signature 客 户 承 认 Customer Approved 承辦人 Responsible 承辦人 Responsible 品质QC主管Chief 核准Approve核准Approve 日 期 Date 日 期 Date 第 2 页 目 录 封面 ...................................................................................1 目录..................................................................... 2 一 概述 --------------------------------------------------------------3 二 驻波、实测图-----------------------------------------------------4 三 效率 ------------------------------------------------------------------5 四 结构图纸----------------------------------------------------------6 No. 4, Building 3, Sanli Industrial Park, No. 4 Chuangjian Road, Lijin Community, Hangcheng Subdistrict, Bao'an District, Shenzhen 电话：0755-27492635 传真：0755-27471559 HTTP://WWW.yunxikeji.COM 第 3 页 一：概述 ●This approval sheet supports for WiFi antennas project. This report is for the performance of WiFi antenna. ●Antenna shape size：Meet the requirement of WiFi antennas ●Antenna band：2400MHz~2500MHz,5150MHz-5850MHz ●Antenna material：Antenna material meet the requirement of WiFi antennas ●Adhesive performance：Adhesive performance meet the requirement of WiFi antennas ●Antenna performance meet the spec below： Description 2.4GHz~2.5GHz ， 5.15GHz — 5.85GHz Units VSWR ≤ 2.5 ≤ 2.5 Antenna Gain≥3.99≥4.64dB Antenna Efficiency≥60≥60% Feed Impedance50 ohms Operating Temperature-40 to +85 deg C Polarization / AzimuthLinear / Omni-directional ●Mechanical Information Mechanical Dimension Cable Length/ DescriptionWLAN antenna Material/ Coaxial Cable/ Environmental Operation Temperature-40 to +85 deg C Storage Temperature-40 to +85 deg C No. 4, Building 3, Sanli Industrial Park, No. 4 Chuangjian Road, Lijin Community, Hangcheng Subdistrict, Bao'an District, Shenzhen 电话：0755-27492635 传真：0755-27471559 HTTP://WWW.yunxikeji.COM 第 4 页 二：驻波 No. 4, Building 3, Sanli Industrial Park, No. 4 Chuangjian Road, Lijin Community, Hangcheng Subdistrict, Bao'an District, Shenzhen 电话：0755-27492635 传真：0755-27471559 HTTP://WWW.yunxikeji.COM 第 5 页 三：效率 No. 4, Building 3, Sanli Industrial Park, No. 4 Chuangjian Road, Lijin Community, Hangcheng Subdistrict, Bao'an District, Shenzhen 电话：0755-27492635 传真：0755-27471559 HTTP://WWW.yunxikeji.COM 第 6 页 四：结构图纸 No. 4, Building 3, Sanli Industrial Park, No. 4 Chuangjian Road, Lijin Community, Hangcheng Subdistrict, Bao'an District, Shenzhen 电话：0755-27492635 传真：0755-27471559 HTTP://WWW.yunxikeji.COM