2BTRM-AI24Mobile smart screen

Lohua Chip-display Technology Development(Jiangsu)Co.， LTD. Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Jan. 15, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2BTRM-AI24 Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Applicant Signature Printed Name: Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. Title: manager Address: No.30 Xingyu Road, Nantong Development Zone, Jiangsu Province, China Tel.: 13544314842 Email: [email protected]

Lohua Chip-display Technology Development(Jiangsu)Co.， LTD. 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Jan. 15, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: [2BTRM-AI24] Product Name: [Mobile smart screen] This letter serves as an attestation that the equipment identified above ☐ is / ☒ is not ( select one) "covered" software as defined under the Federal Communications Commission (FCC) Covered List requirements, as outlined in FCC 22- 84 and KDB 986446. Specifically, the undersigned certifies that the equipment for which authorization is sought: 1.Does not contain cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors, assignees, parents, subsidiaries, affiliates, or any entity that has rebranded or relabeled software produced by the aforementioned entities. 2.Does not have the capability to store, run, or deliver any software identified on the FCC Covered List, including but not limited to cybersecurity and anti-virus software. To support this attestation, the appendix evaluation documentation has been prepared and is included in the certification filing. This attestation is based on a thorough evaluation of the device's design, functionality, and software environment. The undersigned affirms that the information provided is accurate and complete to the best of their knowledge. Sincerely yours, Applicant Signature Printed Name: Zhang tao Title: manager Address: No.30 Xingyu Road, Nantong Development Zone, Jiangsu Province, China Tel.: 13544314842 Email: [email protected] Lohua Chip-display Technology Development(Jiangsu)Co.， LTD. 2 | P a g e Evaluation regarding to the Covered List Software: Compliance Methodology Evaluation Process Results Device is Inherent compliance ☐ The Chipset(s) used is limited to run the Cybersecurity or anti-virus software. Compliance ☐ The Memory used is limited to run the Cybersecurity or anti-virus software. Compliance ☐ There is storage capacity limitation for store or install the Cybersecurity or anti-virus software. Compliance ☐ Operating system used is limited to run, install or deliver the Cybersecurity or anti-virus software. Compliance Device is not Inherent compliance ☒ Evaluation Based on Software Bill of Materials (SBoM) See attached “SBoM“ Note:The SBoM content is limited to the scope of covered list software (e.g. antivirus and cybersecurity software). ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check SBOM (Software Bill of Materials) Section Component Name Version Supplier 1 Android 14 Google 2 3

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company name: HOPEK CORPORATION INC FRN: 0034562900 Contact Name: Peter Davis Address: 16755 Coyote Bush Dr Unit 84, San Diego, CA 92127 United States Telephone No: 561-235-6113 Email: [email protected] Applicant: Company name: Grantee Code: FCC ID: FRN: Contact Name: Address: Telephone No: Fax No: Email: Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. 2BTRM 2BTRM-AI24 0037764149 Zhang tao No.30 Xingyu Road, Nantong Development Zone, Jiangsu Province, China 13544314842 / [email protected] Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. certifies that, as of the date of this filing of the application with the TCB, [HOPEK CORPORATION INC] is our designated US agent for service of process for the above referenced FCC ID. Lohua Chip-display Technology Development(Jiangsu)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 equipment. [HOPEK CORPORATION INC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2026-01-15 Applicant’s Name: Zhang tao US Agent’s Name: Peter Davis Title: manager Title: manager Signature: Signature:

Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. Family models declaration letter. Date: January 15, 2026 We Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. Of No.30 Xingyu Road, Nantong Development Zone, Jiangsu Province, China Product: Mobile smart screen Model Name: ai -24 Serial Model:ai-24.5,LHXA24BA02-M,LHXA24BA04-M, LHXA25BA02-M,LHXA25BA04-M FCC ID: 2BTRM-AI24 Difference description of series models: All models have t he same circuit and RF module, except for the model name and color Thanks Sincerely Signature Name: Zhang tao Date: Jan.15, 2026 Title: manager

Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. Jan 15, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2BTRM-AI24 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules , we hereby request permanent confidential treatment of the exhibits accompanying this certification application as outlined below : Block Diagram Schematics Operational Description Software Security Requirements for UNII devices The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Pursuant to DA 04-1705, the applicant also requests temporary confidential treatment of the exhibits outlined below for a period of (up to 180) days from the date of equipment authorization and prior to marketing in the United States to prevent the premature release of any sensitive information. Applicant is aware of their responsibility to notify DERYCOM in the event information regarding the product or the product is made available to the public before the requested period has expired. User Manual Internal Photos External Photos Test Setup Photos Sincerely, Title: manager Address: No.30 Xingyu Road, Nantong Development Zone, Jiangsu Province, China Tel.: 13544314842 Email: [email protected]

Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. Jan 15, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2BTRM-AI24 I, the undersigned, hereby authorize Shenzhen PSI Testing Co., Ltd. to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by Shenzhen PSI Testing Co., Ltd. shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. We certify that we are not subject to a denial of federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, Title：manager Tel: 13544314842 Fax: / Email: [email protected]

40 mm*25mm

Page 1 of 2 Report No.: psi2601081-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China Appendix IV MPE FCC ID: 2BTRM-AI24 Prediction of MPE at a given distance 1. Limits 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) KDB Test Methodology: KDB 447498 D01 v06. 2. Test Procedure Equation from page 18 of OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to the antenna G = numeric gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the centre of radiation of the antenna Page 2 of 2 Report No.: psi2601081-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China 3. Result Mode Frequency (MHz) Prediction distance (cm) RF output power(Max) (dBm) Tune-up power (Max) MPE (mW/cm 2 ) Limit (mW/cm 2 ) SAR Test Exclusion dBm mW BT LE 2402-2480 20 0.94 1 1.26 0.0005 1 Yes 2.4G WIFI 2412-2462 20 15.25 16 39.81 0.0148 1 Yes 5G WIFI 5180-5240 20 15.71 17 50.12 0.0169 1 Yes 5.8G WIFI 5745-5825 20 15.29 16 39.81 0.0134 1 Yes BT Antenna: max gain 2.73dBi, 1.87(numeric) 2.4G WiFi Antenna: max gain 2.73dBi, 1.87 (numeric) 5G WiFi Antenna: max gain 2.29dBi, 1.69(numeric) Therefore this device complies with FCC's RF radiation exposure limits for general population without SAR evaluation.

TEL：+860755-23073599FAX：+860755-23097189E-mail:[email protected] Address:3015,3rdFloor,No.1SanweiSouthRoad,Bao'anDistrict,ShenzhenCity,GuangdongProvince APPROVALSHEET CUSTOMER： DESCRIPTION： YD-008-1.13wire-150mm-IPEX1 PARTNO.： CUSPARTNO.： DATE： 2025-12-26 Yundingsignature ENGINEERINGDEPARTMENTQCDEPARTMENTSALESDEPARTMENT Customersignature ENGINEERINGDEPARTMENTQCDEPARTMENTPURCHASINGDEPARTMENT TEL：+860755-23073599FAX：+860755-23097189E-mail:[email protected] Address:3015,3rdFloor,No.1SanweiSouthRoad,Bao'anDistrict,ShenzhenCity,GuangdongProvince 1.Testitemsandequipment TestitemsEquipment 1.S11-parameter 1.ReturnLoss 2.VSWR networkanalyzer:AgilentE5071B HP8753D 2.Activetest1.Transmittingpower 2.Receivingsensitivity 1.Darkroom ： ETS7x4x3m(3D)Chamber ETS5x3x3m(3D)Chamber 2.general-purposetester:Agilent8960E5515B×2 StarPointSP6011Cmw500 3. Passivetest 1.Gain 2.Efficiency 1.Darkroom ： ETS7x4x3m(3D)Chamber ETS5x3x3m(3D)Chamber 2.networkanalyzer：AgilentE5071B HP8753D TEL：+860755-23073599FAX：+860755-23097189E-mail:[email protected] Address:3015,3rdFloor,No.1SanweiSouthRoad,Bao'anDistrict,ShenzhenCity,GuangdongProvince 2.Antennaperformance SWR TEL：+860755-23073599FAX：+860755-23097189E-mail:[email protected] Address:3015,3rdFloor,No.1SanweiSouthRoad,Bao'anDistrict,ShenzhenCity,GuangdongProvince 3.Antennaefficiencyandgain PassiveTestForWIFI2.4 FreqEffiGain (MHz)(%)(dBi) 240058.792.32 241058.42.26 242055.962.08 243056.372.15 244059.232.44 245062.982.73 246062.922.68 247063.782.64 248065.872.68 249069.052.7 250066.232.34 TEL：+860755-23073599FAX：+860755-23097189E-mail:[email protected] Address:3015,3rdFloor,No.1SanweiSouthRoad,Bao'anDistrict,ShenzhenCity,GuangdongProvince PassiveTestForWIFI5.8 FreqEffiGain (MHz)(%)(dBi) 515049.551.38 525041.380.53 535050.771.77 545050.171.55 555053.262.01 565043.550.88 575052.112.29 585043.940.76 TEL：+860755-23073599FAX：+860755-23097189E-mail:[email protected] Address:3015,3rdFloor,No.1SanweiSouthRoad,Bao'anDistrict,ShenzhenCity,GuangdongProvince 4.Antennastructurediagram： 2025-12-26 TEL：+860755-23073599FAX：+860755-23097189E-mail:[email protected] Address:3015,3rdFloor,No.1SanweiSouthRoad,Bao'anDistrict,ShenzhenCity,GuangdongProvince Technicalparametersofelectricalappliances ElectricalSpecifications FrequencyRange2400~2500/5150~5850MHz VSWR ≤2.0 InputImpedance 50Ω Gain2.8DBI MechanicalSpecifications AntennacolorBlack InputconnectorIPEX1 Antennalength150mm WorkingTemperature -40°C~+85°C WorkingHumidity20~80%

Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Page 1 of 72 Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China FCC TEST REPORT FCC ID: 2BTRM-AI24 On Behalf of Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. Mobile smart screen Model No.: ai-24,ai-24.5,LHXA24BA02-M,LHXA24BA04-M, LHXA25BA02-M,LHXA25BA04-M Prepared for : Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. Address : No.30 Xingyu Road, Nantong Development Zone, Jiangsu Province, China Prepared By : Shenzhen PSI Testing Co., Ltd. Address : 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China Report Number : psi2601081-C01-R02 Date of Receipt : June 27, 2025 Date of Test : June 27, 2025-July 30, 2025 Date of Report : January 14, 2026 Version Number : V0 Page 2 of 72 Report No.: psi2601081-C01-R02 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China TABLE OF CONTENTS Description Page 1. Summary Of Standards And Results ----------------------------------------------------------------------------------- 6 1.1. Description of Standards and Results --------------------------------------------------------------------------- 6 2. General Information --------------------------------------------------------------------------------------------------------- 7 2.1. Description of Device (EUT) --------------------------------------------------------------------------------------- 7 2.2. Accessories of Device (EUT) -------------------------------------------------------------------------------------- 8 2.3. Tested Supporting System Details-------------------------------------------------------------------------------- 8 2.4. Block Diagram of Connection Between EUT and Simulators ---------------------------------------------- 8 2.5. Test Mode Description ----------------------------------------------------------------------------------------------- 9 2.6. Software test version and power setting information------------------------------------------------------- 10 2.7. Test Conditions ------------------------------------------------------------------------------------------------------ 10 2.8. Test Facility ----------------------------------------------------------------------------------------------------------- 11 2.9. Measurement Uncertainty ---------------------------------------------------------------------------------------- 11 2.10. Test Equipment List ------------------------------------------------------------------------------------------------ 12 3. Spurious Emission --------------------------------------------------------------------------------------------------------- 13 3.1. Test Limits ------------------------------------------------------------------------------------------------------------ 13 3.2. Block Diagram of Test setup ------------------------------------------------------------------------------------- 14 3.3. Test Procedure ------------------------------------------------------------------------------------------------------ 15 3.4. Test Results ---------------------------------------------------------------------------------------------------------- 16 4. Power Line Conducted Emission ------------------------------------------------------------------------------------- 24 4.1. Test Limits ------------------------------------------------------------------------------------------------------------ 24 4.2. Test Procedure ------------------------------------------------------------------------------------------------------ 24 4.3. Test Setup ------------------------------------------------------------------------------------------------------------ 24 4.4. Test Results ---------------------------------------------------------------------------------------------------------- 25 5. Out-of-band Emissions --------------------------------------------------------------------------------------------------- 28 5.1. Test Limits ------------------------------------------------------------------------------------------------------------ 28 5.2. Test Procedure ------------------------------------------------------------------------------------------------------ 28 5.3. Test Setup ------------------------------------------------------------------------------------------------------------ 28 5.4. Test Results ---------------------------------------------------------------------------------------------------------- 28 6. Conducted Maximum Output Power --------------------------------------------------------------------------------- 49 6.1. Test limits ------------------------------------------------------------------------------------------------------------- 49 6.2. Test Procedure ------------------------------------------------------------------------------------------------------ 49 6.3. Test Setup ------------------------------------------------------------------------------------------------------------ 49 6.4. Test Results ---------------------------------------------------------------------------------------------------------- 49 7. Peak Power Spectral Density ------------------------------------------------------------------------------------------- 52 7.1. Test limits ------------------------------------------------------------------------------------------------------------- 52 7.2. Test Procedure ------------------------------------------------------------------------------------------------------ 52 7.3. Test Setup ------------------------------------------------------------------------------------------------------------ 52 7.4. Test Results ------------------------------------------------------…

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Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Page 1 of 38 Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China FCC TEST REPORT FCC ID: 2BTRM-AI24 On Behalf of Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. Mobile smart screen Model No.: ai-24,ai-24.5,LHXA24BA02-M,LHXA24BA04-M, LHXA25BA02-M,LHXA25BA04-M Prepared for : Lohua Chip-display Technology Development(Jiangsu)Co.，LTD. Address : No.30 Xingyu Road, Nantong Development Zone, Jiangsu Province, China Prepared By : Shenzhen PSI Testing Co., Ltd. Address : 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China Report Number : psi2601081-C01-R01 Date of Receipt : June 27, 2025 Date of Test : June 27, 2025-July 30, 2025 Date of Report : January 14, 2026 Version Number : V0 Page 2 of 38 Report No.: psi2601081-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China TABLE OF CONTENTS Description Page 1. Summary Of Standards And Results ----------------------------------------------------------------------------------- 6 1.1. Description of Standards and Results --------------------------------------------------------------------------- 6 2. General Information --------------------------------------------------------------------------------------------------------- 7 2.1. Description of Device (EUT) --------------------------------------------------------------------------------------- 7 2.2. Accessories of Device (EUT) -------------------------------------------------------------------------------------- 8 2.3. Tested Supporting System Details-------------------------------------------------------------------------------- 8 2.4. Block Diagram of Connection Between EUT and Simulators ---------------------------------------------- 8 2.5. Test Mode Description ----------------------------------------------------------------------------------------------- 9 2.6. Software test version and power setting information--------------------------------------------------------- 9 2.7. Test Conditions ------------------------------------------------------------------------------------------------------ 10 2.8. Test Facility ----------------------------------------------------------------------------------------------------------- 10 2.9. Measurement Uncertainty ---------------------------------------------------------------------------------------- 10 2.10. Test Equipment List ------------------------------------------------------------------------------------------------ 11 3. Spurious Emission --------------------------------------------------------------------------------------------------------- 12 3.1. Test Limits ------------------------------------------------------------------------------------------------------------ 12 3.2. Block Diagram of Test setup ------------------------------------------------------------------------------------- 13 3.3. Test Procedure ------------------------------------------------------------------------------------------------------ 14 3.4. Test Results ---------------------------------------------------------------------------------------------------------- 15 4. Power Line Conducted Emission ------------------------------------------------------------------------------------- 20 4.1. Test Limits ------------------------------------------------------------------------------------------------------------ 20 4.2. Test Procedure ------------------------------------------------------------------------------------------------------ 20 4.3. Test Setup ------------------------------------------------------------------------------------------------------------ 20 4.4. Test Results ---------------------------------------------------------------------------------------------------------- 21 5. Out-of-band Emissions --------------------------------------------------------------------------------------------------- 24 5.1. Test Limits ------------------------------------------------------------------------------------------------------------ 24 5.2. Test Procedure ------------------------------------------------------------------------------------------------------ 24 5.3. Test Setup ------------------------------------------------------------------------------------------------------------ 24 5.4. Test Results ---------------------------------------------------------------------------------------------------------- 24 6. Conducted Maximum Output Power --------------------------------------------------------------------------------- 30 6.1. Test limits ------------------------------------------------------------------------------------------------------------- 30 6.2. Test Procedure ------------------------------------------------------------------------------------------------------ 30 6.3. Test Setup ------------------------------------------------------------------------------------------------------------ 30 6.4. Test Results ---------------------------------------------------------------------------------------------------------- 30 7. Peak Power Spectral Density ------------------------------------------------------------------------------------------- 31 7.1. Test limits ------------------------------------------------------------------------------------------------------------- 31 7.2. Test Procedure ------------------------------------------------------------------------------------------------------ 31 7.3. Test Setup ------------------------------------------------------------------------------------------------------------ 31 7.4. Test Results -----------------------------------------------------…

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