2BDTM-D03Portable Smart Screen

Shenzhen Hongshengda Optoelectronic Technology Co. , Ltd Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Mar. 9, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2BDTM-D03 Shenzhen Hongshengda Optoelectronic Technology 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: Shenzhen Hongshengda Optoelectronic Technology Co. , Ltd Title: manager Address: 3rd Floor, Building 4, No.161, Xingye Road, Fenghuang Community, Fuyong Street Bao 'an District, Shenzhen China Tel.: 0755-27417080 Email: [email protected]

Shenzhen Hongshengda Optoelectronic Technology Co. , Ltd 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Mar. 9, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: [2BDTM-D03] Product Name: [Portable 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: Peizhen Wang Title: manager Address: 3rd Floor, Building 4, No.161, Xingye Road, Fenghuang Community, Fuyong Street Bao 'an District, Shenzhen China Tel.: 0755-27417080 Email: [email protected] Shenzhen Hongshengda Optoelectronic Technology 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

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: Contact Name: Address: Telephone No: Email: 0034562900 Yangyang,Xu 16755 Coyote Bush Dr Unit 84, San Diego, CA 92127 United States 561-875-9826 [email protected] Applicant: Company name: Shenzhen Hongshengda Optoelectronic Technology Co. , Ltd Grantee Code: 2BDTM FCC ID: 2BDTM-D03 FRN: 0034547026 Contact Name: Peizhen Wang Address: 3rd Floor, Building 4, No.161, Xingye Road, Fenghuang Community, Fuyong Street Bao 'an District, Shenzhen China Telephone No: 0755-27417080 Fax No: / Email: [email protected] Shenzhen Hongshengda Optoelectronic Technology 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. Shenzhen Hongshengda Optoelectronic Technology 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: 2026-03-09 Applicant’s Name: Peizhen Wang US Agent’s Name: Yangyang,Xu Title: manager Title: manager Signature: Signature:

Shenzhen Hongshengda Optoelectronic Technology Co. , Ltd Family models declaration letter. Date: March 9, 2026 We Shenzhen Hongshengda Optoelectronic Technology Co. , Ltd Of 3rd Floor, Building 4, No.161, Xingye Road, Fenghuang Community, Fuyong Street Bao 'an District, Shenzhen China Product: Portable Smart Screen Model Name: D03 Serial Model: P02,HSD-215,P02******,D03******,HSD-215******,H********,P********(” *”The digits 0-9, letters A-Z and a-z, symbols, or whitespace. The differences between models are only in color patterns and sales channels, with all other aspects being identical. These differences do not affect product safety or electromagnetic compatibility performance. The P series is desktop portable, while the others are pillar-mounted mobile types.) FCC ID: 2BDTM-D03 Difference description of series models: All models have the same circuit and RF module, except for the model name and color Thanks Sincerely Signature Name: Peizhen Wang Date: Mar.09, 2026 Title: manager

Shenzhen Hongshengda Optoelectronic Technology Co. , Ltd Mar 09, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2BDTM-D03 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: 3rd Floor, Building 4, No.161, Xingye Road, Fenghuang Community, Fuyong Street Bao 'an District, Shenzhen China Tel.: 0755-27417080 Email: [email protected]

Shenzhen Hongshengda Optoelectronic Technology Co. , Ltd Mar 09, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2BDTM-D03 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 Shenzhen Hongshengda Optoelectronic Technology 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: 0755-27417080 Fax: / Email: [email protected]

WARNING WHEN NEEDED, PLEASE CONTACT PROFESSIONALS OR AUTHORIZED PERSONS! NON-PROFESSIONALS DO NOT OPEN IT! Shenzhen Hongshengda Optoelectronic TechnologyCo Name:Portable Smart Screen Model: D03 Powersupply: 15V 2.4A FCC ID:2BDTM-D03 MADE IN CHINA Power: 36W (MAX) Name：Portable Smart Screen Model：D03 Power Supply：15V 2.4A Power： 36W（MAX） FCC ID:2BDTM-D03 NON-PROFESSIONALS DO NOT OPEN IT! WHEN NEEDED, PLEASE CONTACT PROFESSIONALS OR AUTHORIZED PERSONS! MADE IN CHINA Shenzhen Hongshengda Optoelectronic TechnologyCo

Page 1 of 2 Report No.: psi2603068-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: 2BDTM-D03 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.: psi2603068-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 0.49 1 1.26 0.0004 1 Yes 2.4G WIFI 2412-2462 20 14.79 15 31.62 0.0099 1 Yes 5G WIFI 5180-5240 20 14.77 15 31.62 0.0124 1 Yes 5.8G WIFI 5745-5825 20 14.77 15 31.62 0.0124 1 Yes BT Antenna: max gain 1.99dBi, 1.58(numeric) 2.4G WiFi Antenna: max gain 1.99dBi, 1.58 (numeric) 5G WiFi Antenna: max gain 2.94dBi, 1.97(numeric) Therefore this device complies with FCC's RF radiation exposure limits for general population without SAR evaluation.

第 2 页 WIFI Antenna (2520A) 1.Explanation of Product number : S L K-S D Z L-2 5 2 0 A-R-3 0 0 I V-B 1 2 3 4 5 Product Code: (1) Customer: SDZL: (2)Project: 2520A:SLK-SDZL-2520A (WIFI antenna) (3)Welding Position R:Right (4)Cable Length: 300IV: 300*1.13M (5)Cable Color B:Black 2. Features *Stable and reliable in performances *Compact size *RoHS compliance 3. Applications * IEEE802.11 (a/b/g/n) * Hand-held devices when WIFI (802.11a/b/g/n) functions are needed 第 3 页 4. Description Holy bond’s FPC antenna series are specially designed for WIFI (802.11 a/b/g/n) applications. Based on Holy bond’s proprietary design and processes, this FPC antenna has excellent stability and sensitivity to consistently provide high signal reception efficiency. 5. Electrical Specifications 5-1 Characteristics Specifications Unit Outline Dimensions 25.43x20.09x0.12 mm Center Frequency 2.4-2.5/5.15-5.85 GHz Bandwidth(under-10dB return loss) 130min MHz VSWR 3max 5.2 VSWR S11 第 4 页 5-3.WIFI Antenna Gain/Efficiency/Radiation Pattern of 3D Frequency (MHz) Efficiency (dBi) Gain (dBi) Efficiency (%) 2400 -4.221.74 37.78 2410 -4.101.99 38.85 2420 -4.281.73 37.29 2430 -4.471.53 35.67 2440 -4.171.95 38.24 2450 -4.411.71 36.20 2460 -4.331.69 36.90 2470 -4.591.34 34.70 2480 -4.631.96 34.36 2490 -4.471.85 35.68 2500 -4.481.86 35.58 5150 -4.272.94 37.38 5250 -4.232.21 37.72 5450 -4.162.36 38.29 5850 -4.022.40 39.56 第 5 页 6.Antenna Dimensions (unit: mm) 第 6 页 7. Antenna Picture

Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Page 1 of 73 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: 2BDTM-D03 On Behalf of Shenzhen Hongshengda Optoelectronic Technology Co.,Ltd Portable Smart Screen Model No.: D03(For more models, please refer to the General Description of EUT.) Prepared for : Shenzhen Hongshengda Optoelectronic Technology Co.,Ltd Address : 3rd Floor, Building 4, No.161, Xingye Road,Fenghuang Community,Fuyong Street,Bao 'an District, Shenzhen, 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 : psi2603068-C01-R02 Date of Receipt : Jan.14, 2026 Date of Test : Jan.14, 2026-Feb.24, 2026 Date of Report : Feb.24, 2026 Version Number : V0 Page 2 of 73 Report No.: psi2603068-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 --------------------------------------------------------------------- 50 7.1. Test limits ------------------------------------------------------------------------------------------ 50 7.2. Test Procedure ----------------------------------------------------------------------------------- 50 7.3. Test Setup ----------------------------------------------------------------------------------------- 50 7.4. Test Results--------------------------------------------------------------------------------------- 50 8. Occupied Bandwidth --------------------------------------------------------------------------------- 57 8.1. Test limits ------------------------------------------------------------------------------------------ 57 8.2. Test Procedure ----------------------------------------------------------------------------------- 57 8.3. Test Setup ----------------------------------------------------------------------------------------- 57 8.4. Test Results--------------------------------------------------------------------------------------- 57 Page 3 of 73 Report No.: psi2603068-C01-R02 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | ht…

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Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Page 1 of 43 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: 2BDTM-D03 On Behalf of Shenzhen Hongshengda Optoelectronic Technology Co.,Ltd Portable Smart Screen Model No.: D03(For more models, please refer to the General Description of EUT.) Prepared for : Shenzhen Hongshengda Optoelectronic Technology Co.,Ltd Address : 3rd Floor, Building 4, No.161, Xingye Road,Fenghuang Community,Fuyong Street,Bao 'an District, Shenzhen, 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 : psi2603068-C01-R01 Date of Receipt : Jan.14, 2026 Date of Test : Jan.14, 2026-Feb.24, 2026 Date of Report : Feb.24, 2026 Version Number : V0 Page 2 of 43 Report No.: psi2603068-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--------------------------------------------------------------------------------------- 31 8. Occupied Bandwidth --------------------------------------------------------------------------------- 34 8.1. Test limits ------------------------------------------------------------------------------------------ 34 8.2. Test Procedure ----------------------------------------------------------------------------------- 34 8.3. Test Setup ----------------------------------------------------------------------------------------- 34 8.4. Test Results--------------------------------------------------------------------------------------- 34 Page 3 of 43 Report No.: psi2603068-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | h…

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