2ASCB-DH055NLB55-inch NoTCH WALL MOUNTED AND 14 OS DUAL BAND

D2G Group LLC Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [July 20, 2026] U.S. Agent Designation [D2G Group LLC] 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: 2ASCB-DH055NLB Name and company of U.S. agent: [D2G Group LLC] Physical U.S. address of agent: [81 Commerce Drive, Fall River, Massachusetts 02720, United States] FRN of U.S. agent: [0028157329] Email address of U.S. agent: [[email protected]] Telephone of U.S.agent: 8775816818 [D2G Group LLC] acknowledges their obligation to accept service of process on behalf of [D2G Group LLC]. [D2G Group LLC] with the FRN [0028157329] 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 [Lynn McElroy] [Lynn McElroy] [Director, Digital Solutions] [Director, Digital Solutions] [D2G Group LLC] [D2G Group LLC]

D2G Group LLC (July 20, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID: 2ASCB-DH055NLB [D2G Group LLC] (“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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name) Lynn McElroy D2G Group LLC (July 20, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID: 2ASCB-DH055NLB [D2G Group LLC] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Lynn McElroy

D2G Group LLC (July 20, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (55- inch NoTCH WALL MOUNTED AND 14 OS DUAL BAND / DH055NLB / FCC ID: 2ASCB-DH055NLB) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☒ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: Lynn McElroy Title: Director, Digital Solutions

D2G Group LLC (July 20, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology Co., Ltd.) 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). This agreement expires one year from the current date. Sincerely, Signature: Name: Lynn McElroy Title: Director, Digital Solutions

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: DH055NLB External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4 ANT

YOUGUANG OPTOELECTRONICS 2026-06-17-001 DH055NLB_ 55" NoTCH WALL MOUNTED AND 14 OS DUAL BAND 55" LCD AC Power Cord Socket On/off switch DC Power Port Audio output port Type-C port RJ45 port USB 3.0 port HDMI Port USB 2.0 port 2 3 4 5 Series No: XXXXXX0001 50.8mm 10mm 89mm 56mm DH055NLB 2.3A 116W 2ASCB-DH055NLB 55-inch NoTCH WALL MOUNTED AND 14 OS DUAL BAND 7.3mm 72.4mm 1 1" 2" Series No: XXXXXX0001 1 4 5 3 2 DH055NLB 2.3A 116W 2ASCB-DH055NLB 55-inch NoTCH WALL MOUNTED AND 14 OS DUAL BAND

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2ASCB-DH055NLB Applied procedures / limit According to FCC §15.247(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. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna,R=20cm Test Result of RF Exposure Evaluation BT+WIFI supported simultaneous transmission: EDR+2.4GWIFI+5GWIFI: ∑MPE Ratio =0.0007/1+0.0107/1+0.016/1=0.0274≤1, So passed. Modes& Channel Freq. (MHz) Tune up Produce power Maximu m peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW / cm2 ) Result EDR 8DPSK& MCH 2±1 3 1.9953 1.8072 (2.57dBi) 0.0007 1 Pass 2.4G WIFI 802.11g&2 412 14±1 15 31.6228 1.7061 (2.32dBi) 0.0107 1 Pass 5.2GWIFI 802.11ax( HE20)& 5240 12±1 13 19.9526 1.5959 (2.03dBi) 0.0063 1 Pass 5.8GWIFI 802.11a&5 745 12±1 13 19.9526 4.0179 (6.04dBi) 0.016 1 Pass

ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber1-12 Specification for 2DBi2.4G–5.8GDual-FrequencyRubberRod Antenna CustomerMaterialNumber Ourcompany'smaterialcode: 2.4G–5.8GDual-BandRubberRodAntenna preparedby:ZengXiaofengreviewedby:WenShihao Date:2022.09.20 ShenzhenYixinElectronicTechnologyCo.,Ltd. 1212,BlockA,HuafengHeadquartersEconomicBuilding,No.288XixiangAvenue,Xixiang Street,Bao'anDistrict,Shenzhen Email:[email protected] ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber2-12 Catalogue Specification .................................................................................. ..................................................1 ShenzhenYixinElectronicTechnologyCo.,Ltd............................................... ..................................................1 Catalogue ............................................................................................................................................2 1.Bothpartiesconfirm ............................................................................... ..................................................3 2.GeneralMatters ............................................................................... ..................................................4 3.GeneralProductSpecifications ....................................................................... ..................................................4 4.ProductSpecificationDetails....................................................................... ..................................................5 4.1ProductStructuralParameters .................................................................... ..................................................5 4.2ProductElectricalPerformanceTestData ....................................................... ..................................................7 5.ProductPackagingMethod..................................................................... ................................................12 6.DocumentProfile............................................................................. ................................................12 ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber3-12 1.BothPartiesConfirm 1.1CustomerConfirmationSignature client： CustomerDepartment/PositionConfirmingPerson'sSignatureConfirmationDate Hardware/RadioFrequency Structure Projectmanager Business/Purchasing Examineandverify 1.2YixinElectronicsHasConfirmedandSignedtheDocument. Department/PositionConfirmingPerson'sSignatureConfirmationDate AntennaEngineer Constructionengineer Projectmanager QA Examineandverify ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber4-12 2.GeneralMatters 2.1ScopeofApplication LittleSGlueStickWIFIAntenna 2.2UsageTemperatureRange Theproductissuitableforusewithinatemperaturerangeof-20to+65°C. 2.3StorageTemperatureRange Thisproductshouldbestoredat-30to+75°C. 3.GeneralProductSpecifications NO.ITEMSDETAILS 1Type 2Frequencyrange2.4~2.5G/5.1~5.9G 3 VSWR≤2.0 4Gain3.0±0.5dBi 5 Radiation Efficiency ≥50% 6 Impedance50Ω 7 AntennaTypeDipole 8 FormofAntenna Implementation Rubberrodantenna 9AntennaImage ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber5-12 4.ProductSpecificationDetails 4.1ProductStructuralParameters 4.11ProductMaterialComposition: OrdernumberMaterial Specifications（MM） 1GluestickΦ10*110MM 4.12Surface Theproductexhibitsanexcellentappearance,freefromdefectssuchasscars,sweatstains,orprotrusionsthatwouldsignificantlycompromiseitsvisualquality. 4.13StructureSize ReferenceProductDrawing: productdrawing： ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber6-12 ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber7-12 4.2ProductElectricalPerformanceTestData 4.21TestingEnvironmentandEquipment Testingenvironment： Temperature：10°C——+30°C Relativehumidity:≤80%(+40°C) Atmosphericpressure:750mmHg±30mmHg Testingfacility： NetworkAnalyzer: AgilentTE8358AETS MicrowaveDarkCh- amber 422 4.22ProductElectricalPerformance TestData:..1AntennaS11Diagram: Marker（MHz）2400250051505350570Hz5850 Returnloss-11.8-10.9-6.5-8.5-10.4-14.1 VSWR1.621.882.582.251.741.49 ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber8-12 4.22.2AntennaGainEfficiency: Freq.(MHz)Gain(dBi)Efficiency(%) 2400.02.764.9 2410.02.5663.7 2420.02.4363.2 2430.02.0659.4 2440.02.0961.8 2450.02.1363.7 2460.02.3267.3 2470.02.4569.0 2480.02.5770.3 2490.02.7873.9 2500.02.8774.5 5150.00.9642.3 5200.01.9149.8 5250.02.0349.5 5300.02.3055.5 5350.02.3354.6 5700.03.8245.1 5750.04.9347.2 5800.05.0548.5 5850.06.0450.5 5900.05.7053.8 ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber9-12 4.22.3AntennaRadiationPattern: Frequency:2450MHz 3DFaceH ElSurfaceE2Surface ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber10-12 Frequency:5150MHz 3DFaceH E1SurfaceE2Surface ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber11-12 Frequency:5850MHz 3DFaceH E1SurfaceE2Surface Note:TheantennarubberrodisplacedparalleltotheZ-axis. ShenzhenYixinElectronicTechnologyCo.,Ltd. ShenzhenyixinElectronicTechnologyCo.,Ltd Pagenumber12-12 5.ProductPackagingMethod mannerofpacking： Self-sealedpackaging,50piecesperpack. 6.DocumentProfile Documentnumber DocumentNo. Date ReleaseDate 2022/09/20 EditAuthor Hungjie Review WH FileHistoryTable RevisedHistory DateVersionRevisedRecord 2022/09/201.00NewProject

Report Tel: 4008-707- 283Web: http://www.ctb-lab.net Page 1 of 81 TEST REPORT Compiled by: Reviewed by: Approved by: Kai Chen Martin Feng Bin 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. The tested sample(s) and the sample information are provided by the applicant. The authenticity, accuracy, and completeness of the provided information are the sole responsibility of the applicant. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The result decision rules of our laboratory are based solely on the direct comparison between the actual measured values of test results and the standard limits, without considering the measurement uncertainty.“” indicates the testing items were fulfilled by subcontracted lab. “” indicates the items are not in CNAS accreditation scope. Test item description: 55- inch NoTCH WALL MOUNTED AND 14 OS DUAL BAND FCC ID: 2ASCB-DH055NLB Trademark(s): N/A Model/Type reference: DH055NLB Applicant’s name: D2G Group LLC Address: 81 Commerce Drive, Fall River, Massachusetts 02720, United States Manufacturer: GUANGZHOU YOUGUANG OPTOELECTRONICS CO., LTD. Address: No.75, Pacific Ind. Zone, Xingtang Town, Zengcheng, Guangzhou, 511340 China Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Jun. 23, 2026 Sample tested Date: Jun. 23, 2026 to Jul. 14, 2026 Issue Date: Jul. 14, 2026 Report No.: CTB26062306003RF03 Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2020 Test Results PASS Remark: This is WIFI-2.4GHz band radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB26062306003RF03 Report Tel: 4008-707- 283 Web: http://www.ctb-lab.net Page 2 of 81 TABLE OF CONTENT Test Report Declaration Page 1. VERSION .......................................................................... 3 2. TEST SUMMARY ................................................................... 4 3. MEASUREMENT UNCERTAINTY ..................................................... 5 4. PRODUCT INFORMATION AND TEST SETUP .......................................... 6 4.1 Product Information .................................................................... 6 4.2 Test Setup Configuration ............................................................... 6 4.3 Support Equipment .................................................................... 6 4.4 Channel List .......................................................................... 6 4.5 Test Mode ............................................................................ 7 4.6 Test Environment ...................................................................... 7 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................... 8 5.1 Test Facility ........................................................................... 8 5.2 Test Instrument Used .................................................................. 8 6. AC POWER LINE CONDUCTED EMISSION ............................................ 11 6.1 Block Diagram Of Test Setup .......................................................... 11 6.2 Limit ................................................................................ 11 6.3 Test procedure ....................................................................... 11 6.4 Test Result .......................................................................... 13 7. RADIATED SPURIOUS EMISSION ................................................... 15 7.1 Block Diagram Of Test Setup .......................................................... 15 7.2 Limit ................................................................................ 15 7.3 Test procedure ....................................................................... 16 7.4 Test Result .......................................................................... 17 8. BAND EDGE AND RF CONDUCTED SPURIOUS EMISSIONS ........................... 49 8.1 Block Diagram Of Test Setup .......................................................... 49 8.2 Limit ................................................................................ 49 8.3 Test procedure ....................................................................... 49 8.4 Test Result .......................................................................... 50 9. CONDUCTED OUTPUT POWER ..................................................... 62 9.1 Block Diagram Of Test Setup .......................................................... 62 9.2 Limit ................................................................................ 62 9.3 Test procedure ....................................................................... 62 9.4 Test Result .......................................................................... 62 10. 6DB OCCUPIED BANDWIDTH ....................................................... 63 10.1 Block Diagram Of Test Setup ......................................................... 63 10.2 Limit ............................................................................... 63 10.3 Test procedure ...................................................................... 63 10.4 Test Result ......................................................................... 64 11. POWER SPECTRAL DENSITY ...................................................... 71 11.1 Block Diagram Of Test Setup ......................................................... 71 11.2 Limit ............................................................................... 71 11.3 Test procedure ...............................................…

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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: DH055NLB 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