2ABC5-E0102Android Digital Signage

SHENZHEN ELECTRON TECHNOLOGY CO., LTD. Covered Equipment Certification Attestation Letter 11/6/2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2ABC5-E0102 SHENZHEN ELECTRON TECHNOLOGY CO., LTD. (“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. SHENZHEN ELECTRON 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 (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. SHENZHEN ELECTRON TECHNOLOGY CO., LTD. (“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). Signed: Printed name: Lianqi Wang Title: Manager Company Name: SHENZHEN ELECTRON TECHNOLOGY CO., LTD. Date: 11/06/2025

SHENZHEN ELECTRON TECHNOLOGY CO., LTD. * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 11/24/2025 TO: Federal Communications Commission 7435 O akland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2ABC5-E0102 FRN of applicant: 0023141955 Per section 2.911(d)(7) of the FCC rules, [ SHENZHEN ELECTRON TECHNOLOGY CO., LTD.] (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Com pany Name: FCC US Agent, LLC FCC Registration Number (FRN): 0033402884 Physical U.S. Company Address: 3722 Illinois Avenue, Saint Charles, IL 60174, USA Contact Person: Tim Payne Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The appli cant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed: Signed: Printed name: Lianqi Wang Title: Manager Company Name: SHENZHEN ELECTRON TECHNOLOGY CO., LTD. Date: 11/24/2025 Agent Signed (if different from Applicant): Signed: Printed name: Tim Payne Title: Manager Company Name: FCC US Agent, LLC Date: 11/24/2025

DATE 11/06/2025 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: ___ 2ABC5-E0102 ______ Product Name: ___ Android Digital Signage___ Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...) • Schematics • Block diagram • Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Printed name: Lianqi Wang Title: Manager Company Name: SHENZHEN ELECTRON TECHNOLOGY CO., LTD. Date: 11/06/2025

DATE : 11/06/2025 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2ABC5-E0102 Product Name: Android Digital Signage Request for Short-Term Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission rules, and in accordance with the FCC Public notice dated June 15, 2004 (DA 04-1705), we hereby request short-term confidentiality for the following items prior to marketing the device.:  Test Setup Photos  External Photos  Internal Photos  User Manual The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Printed name: Lianqi Wang Title: Manager Company Name: SHENZHEN ELECTRON TECHNOLOGY CO., LTD. Date: 11/06/2025

DATE: 11/06/2025 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen EU Testing Laboratory Limited (101, Building B1, Fuqiao Fourth Area, Qiaotou Community Fuhai Subdistrict Baoan District,Shenzhen,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 SHENZHEN ELECTRON TECHNOLOGY CO., LTD. (Bld.2, Yingfeng Industrial Zone, Tantou Community, Songgang Street, Bao’an, Shenzhen, China) (Applicant Name and address) Printed name: Lianqi Wang Title: Manager Company Name: SHENZHEN ELECTRON TECHNOLOGY CO., LTD. Date: 11/06/2025

Date 11/06/2025 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION 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). Sincerely, Printed name: Lianqi Wang Title: Manager Company Name: SHENZHEN ELECTRON TECHNOLOGY CO., LTD. Date: 11/06/2025

Label Location On EUT Label

RF EXPOSURE EVALUATION According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in KDB 447498 D01 V06 and §1.1307(b) CFR Title 47 §2.1091(b): (b) For purposes of this section, a mobile device is defined as a transmitting device designed to be used in other than fixed locations and to generally be used in such a way that a separation distance of at least 20 centimeters is normally maintained between the transmitter’s radiating structure(s) and the body of the user or nearby persons. FCC ID: 2ABC5-E0102 EUT Specification EUT Android Digital Signage Frequency band (Operating) WLAN: 2.412GHz ~ 2.462GHz WLAN: 5.18GHz ~ 5.24GHz WLAN: 5.745GHz ~ 5.825GHz Others: 2.402GHz~2.480GHz BT NFC: 13.56MHz RFID: 125kHz Device category Portable (<20cm separation) Mobile (>20cm separation) Others ___ Exposure classification Occupational/Controlled exposure (S = 5mW/cm2) General Population/Uncontrolled exposure (S=1mW/cm2) Antenna diversity Single antenna Multiple antennas Tx diversity Rx diversity Tx/Rx diversity Evaluation applied MPE Evaluation SAR Evaluation Limits for Maximum Permissible Exposure(MPE) Note: Emissions between 100 kHz to 300 kHz should be assessed versus the limits at 300 kHz in Table 1 of Section 1.1310: 614 V/m and 1.63 A/m.AKDB inquiry is required to determine the applicable exposure limits below 100 kHz. Friis transmission formula: Pd=(Pout*G)\(4*pi*R2) Where Pd= Power density in mW/cm 2 Pout=output power to antenna in Mw G= gain of antenna in linear scale Pi=3.1416 R= distance between observation point and center of the radiator in cm Pd the limit of MPE, 1mW/cm2. If we know the maximum gain of the antenna and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. Measurement Result BT worst case: Operating Mode Channel Frequency Measured Power Tune up tolerance Max. Tune up Power Antenna Gain Power density at 20cm Power density Limits (mW/cm 2 ) (MHz) (dBm) (dBm) (dBm) (dBi) (mW/ cm 2 ) 8DPSK 2480 -3.89 -3.89±1 -2.89 2.97 0.0002 1 BLE worst case: Operating Mode Channel Frequency Measured Power Tune up tolerance Max. Tune up Power Antenna Gain Power density at 20cm Power density Limits (mW/cm 2 ) (MHz) (dBm) (dBm) (dBm) (dBi) (mW/ cm 2 ) 2M 2480 -4.29 -4.29±1 -3.29 2.97 0.0002 1 2.4GHz WiFi worst case: Operating Mode Channel Frequency Measured Power Tune up tolerance Max. Tune up Power Antenna Gain Power density at 20cm Power density Limits (mW/cm 2 ) (MHz) (dBm) (dBm) (dBm) (dBi) (mW/ cm 2 ) 802.11g 2437 18.35 18.35±1 19.35 2.97 0.0339 1 5.1 GHz WiFi worst case: Operating Mode Channel Frequency Measured Power Tune up tolerance Max. Tune up Power Antenna Gain Power density at 20cm Power density Limits (mW/cm 2 ) (MHz) (dBm) (dBm) (dBm) (dBi) (mW/ cm 2 ) 802.11a 5180 10.18 10.18±1 11.18 3.87 0.0064 1 5.8GHz WiFi worst case: Operating Mode Channel Frequency Measured Power Tune up tolerance Max. Tune up Power Antenna Gain Power density at 20cm Power density Limits (mW/cm 2 ) (MHz) (dBm) (dBm) (dBm) (dBi) (mW/ cm 2 ) 802.11ac (VHT20) 5825 10.50 10.50±1 11.50 3.53 0.0063 1 Evaluate the condition of different modules work simultaneously The requirement of Simultaneous Transmission evaluation has also been considered and has complied with the following conditions of the worst case: MPE1/Limit1 + MPE2/Limit2 +...... ≤ 1 Thus, 0.0002/1 + 0.0339/1 + 0.0064/1 + 0.0063/1 (BT/BLE) (2.4G WiFi) (5.1G WiFi) (5.8G WiFi) = 0.0468 ≤ 1 The worst-case situation is 0.0468, which is less than “1”. This confirmed that the device comply with FCC KDB 447498 D04 Power limit.

Shenzhen Yishengbang Technology Co., Ltd. Page 1 Sample Approval Letter of Shenzhen Yishengbang Technology Co., Ltd. SPECIFICATION FOR APPROVAL Com pany Company Name Name (to be filled in by the customer): Shenzhen Yilaidun Technology Co., Ltd. Phys ical Spec ificat ions Material Format Mode l Code (to be filled in by the customer): No. (to be filled in by the customer): WL1539 Supp lier Approval Suppli er Mer cha nt Dat e Date (to be filled in by the customer): Name (to be filled in by SLK): Shenzhen Yishengbang Technology Co., Ltd. Supp lier Suppli er Mer cha nt Na me Weight (fill in by SLK): WIFI: SLK-YLD-2516U-R-400I-G-1.13DS Contractor App roval Signature Seal Supplie r Sup plie r Merc hant Cont racto r Confirm (SLK fill in the column) Shenzhen Yilaidun Technology Co., Ltd. Engineer Review Approval Engineer Review Approval Liu Shun Huang Zhen Lin Meicai Seal and Signature Seal and Signature Date Issue 2025-7-10 Date Issue Instructions: □ Accepted □ Conditionally Accepted Remarks (to be filled in by the customer): Supplier Name: Shenzhen Yishengbang Technology Co., Ltd. Supplier Address: Room 101, Building C, Shenzhen Qianwan Hard Technology Industrial Park, Bao'an District, Shenzhen Telephone Phone: 18025305599 Telephone Phone: 18666299104 深圳市亿圣邦科技有限公司 第 2 页 WIFI Antenna (2516U) 1. Explanation of Product number : S L K-Y L D-2516U-R-400I-G-1 . 1 3 D S 1 2 3 4 5 Product Code: (1) Customer: YLD: 亿莱顿 (2) Project: 2516U: SLK-YLD-2516U (WIFI antenna) (3) Welding Position R:Right (4) Cable Length: 400I: 400*1.13MM 一代端子(低损耗线) (5)Cable Color G: Gray 2. Features *Stable and reliable in performances *Compact size * RoHS compliance 3. Applications * IEEE802.11 (a/b/g/n) * Hand-held devices when WIFI (802.11 a/b/g/n) functions are needed 深圳市亿圣邦科技有限公司 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 25.43x16.19x 0.12 mm Center Frequency 2.4-2.5+5.15-5.90 GHz Bandwidth(under-10dB return loss) 130min MHz VSWR 3max 5-2． VSWR S11 深圳市亿圣邦科技有限公司 第 4 页 5-3. WIFI 1Antenna Gain/Efficiency/Radiation Pattern of 3D Frequency (MHz) Efficiency (dBi) Gain (dBi) Efficiency (%) 2400.0 -3.59 2.92 43.73 2410.0 -3.42 2.14 45.49 2420.0 -3.49 2.87 44.73 2430.0 -3.53 2.46 44.28 2440.0 -3.64 2.84 43.23 2450.0 -3.67 2.28 42.86 2460.0 -3.67 2.97 42.86 2470.0 -3.56 2.08 43.99 2480.0 -3.58 2.20 43.85 2490.0 -3.56 2.50 44.02 2500.0 -3.54 2.91 44.19 5150.0 -3.24 3.22 47.35 5350.0 -3.15 3.87 48.32 5550.0 -3.12 3.80 48.70 5750.0 -3.08 3.48 49.10 5850.0 -3.19 3.53 47.88 深圳市亿圣邦科技有限公司 第 5 页 6. Antenna Dimensions (unit: mm) 深圳市亿圣邦科技有限公司 第 6 页 7. Antenna Picture

Page 1 of 125 Report No.: 8333EU011811W-AG ANNEX G TEST DATA For Project No.: 8333EU011811W Client: SHENZHEN ELECTRON TECHNOLOGY CO., LTD. Product Description: Android Digital Signage Model No.: WL1539T FCC ID: 2ABC5-E0102 Technology: WiFi 5G Test Engineer: Test Date: 2025-08-22 Page 2 of 125 Report No.: 8333EU011811W-AG Test Summary Item Result Duty Cycle Pass Bandwidth Pass Maximum Conducted Output Power Pass Maximum Power Spectral Density Pass Unwanted Emissions In Non-restricted Frequency Bands Pass Frequency Stability Pass Page 3 of 125 Report No.: 8333EU011811W-AG 1. Duty Cycle 1.1 Test Result 1.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) RU RU Pos T_on (ms) Period (ms) Duty Cycle (%) Duty Cycle Correction Factor (dB) Max. DC Variation (%) 802.11a SISO 5180 / / 2.034 12.050 16.88 7.73 0.03 5200 / / 2.034 12.054 16.87 7.73 0.00 5240 / / 2.030 12.047 16.85 7.73 0.02 5745 / / 2.034 12.054 16.87 7.73 0.03 5785 / / 2.033 12.073 16.84 7.74 0.05 5825 / / 2.033 12.053 16.87 7.73 0.01 802.11n (HT20) SISO 5180 / / 1.890 11.913 15.87 8.00 0.03 5200 / / 1.890 11.913 15.87 8.00 0.03 5240 / / 1.890 11.910 15.87 7.99 0.03 5745 / / 1.893 11.913 15.89 7.99 0.03 5785 / / 1.894 11.987 15.80 8.01 0.11 5825 / / 1.893 12.386 15.28 8.16 0.64 802.11n (HT40) SISO 5190 / / 0.930 10.947 8.50 10.71 0.03 5230 / / 0.930 10.950 8.49 10.71 0.03 5755 / / 0.933 10.950 8.52 10.70 0.00 5795 / / 0.933 10.957 8.52 10.70 0.01 802.11ac (VHT20) SISO 5180 / / 1.900 11.917 15.94 7.97 0.03 5200 / / 1.900 11.923 15.94 7.98 0.00 5240 / / 1.900 11.916 15.94 7.97 0.03 5745 / / 1.900 11.924 15.93 7.98 0.04 5785 / / 1.900 11.924 15.93 7.98 0.03 5825 / / 1.900 11.970 15.87 7.99 0.09 802.11ac (VHT40) SISO 5190 / / 0.936 10.953 8.55 10.68 0.00 5230 / / 0.937 10.954 8.55 10.68 0.00 5755 / / 0.937 10.957 8.55 10.68 0.03 5795 / / 0.937 10.960 8.55 10.68 0.01 802.11ac (VHT80) SISO 5210 / / 0.456 10.480 4.35 13.61 0.03 5775 / / 0.457 10.563 4.33 13.64 0.07 802.11ax (HEW20) SISO 5180 SU / 1.460 11.484 12.71 8.96 0.03 5200 SU / 1.460 11.483 12.71 8.96 0.03 5240 SU / 1.460 11.477 12.72 8.95 0.03 5745 SU / 1.460 11.483 12.71 8.96 0.03 5785 SU / 1.464 11.767 12.44 9.05 0.31 5825 SU / 1.460 11.483 12.71 8.96 0.03 802.11ax (HEW40) SISO 5190 SU / 0.760 10.780 7.05 11.52 0.03 5230 SU / 0.764 10.780 7.09 11.50 0.00 5755 SU / 0.763 11.203 6.81 11.67 0.27 5795 SU / 0.760 10.780 7.05 11.52 0.03 Page 4 of 125 Report No.: 8333EU011811W-AG 1.2 Test Graph 1.2.1 Ant1 802.11a_LCH_5180MHz_Ant1_NTNV 802.11a_MCH_5200MHz_Ant1_NTNV Page 5 of 125 Report No.: 8333EU011811W-AG 802.11a_HCH_5240MHz_Ant1_NTNV 802.11a_LCH_5745MHz_Ant1_NTNV Page 6 of 125 Report No.: 8333EU011811W-AG 802.11a_MCH_5785MHz_Ant1_NTNV 802.11a_HCH_5825MHz_Ant1_NTNV Page 7 of 125 Report No.: 8333EU011811W-AG 802.11n(HT20)_LCH_5180MHz_Ant1_NTNV 802.11n(HT20)_MCH_5200MHz_Ant1_NTNV Page 8 of 125 Report No.: 8333EU011811W-AG 802.11n(HT20)_HCH_5240MHz_Ant1_NTNV 802.11n(HT20)_LCH_5745MHz_Ant1_NTNV Page 9 of 125 Report No.: 8333EU011811W-AG 802.11n(HT20)_MCH_5785MHz_Ant1_NTNV 802.11n(HT20)_HCH_5825MHz_Ant1_NTNV Page 10 of 125 Report No.: 8333EU011811W-AG 802.11n(HT40)_LCH_5190MHz_Ant1_NTNV 802.11n(HT40)_HCH_5230MHz_Ant1_NTNV Page 11 of 125 Report No.: 8333EU011811W-AG 802.11n(HT40)_LCH_5755MHz_Ant1_NTNV 802.11n(HT40)_HCH_5795MHz_Ant1_NTNV Page 12 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT20)_LCH_5180MHz_Ant1_NTNV 802.11ac(VHT20)_MCH_5200MHz_Ant1_NTNV Page 13 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT20)_HCH_5240MHz_Ant1_NTNV 802.11ac(VHT20)_LCH_5745MHz_Ant1_NTNV Page 14 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT20)_MCH_5785MHz_Ant1_NTNV 802.11ac(VHT20)_HCH_5825MHz_Ant1_NTNV Page 15 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT40)_LCH_5190MHz_Ant1_NTNV 802.11ac(VHT40)_HCH_5230MHz_Ant1_NTNV Page 16 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT40)_LCH_5755MHz_Ant1_NTNV 802.11ac(VHT40)_HCH_5795MHz_Ant1_NTNV Page 17 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT80)_MCH_5210MHz_Ant1_NTNV 802.11ac(VHT80)_MCH_5775MHz_Ant1_NTNV Page 18 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW20)_LCH_5180MHz_SU_ / _Ant1_NTNV 802.11ax(HEW20)_MCH_5200MHz_SU_ / _Ant1_NTNV Page 19 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW20)_HCH_5240MHz_SU_ / _Ant1_NTNV 802.11ax(HEW20)_LCH_5745MHz_SU_ / _Ant1_NTNV Page 20 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW20)_MCH_5785MHz_SU_ / _Ant1_NTNV 802.11ax(HEW20)_HCH_5825MHz_SU_ / _Ant1_NTNV Page 21 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW40)_LCH_5190MHz_SU_ / _Ant1_NTNV 802.11ax(HEW40)_HCH_5230MHz_SU_ / _Ant1_NTNV Page 22 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW40)_LCH_5755MHz_SU_ / _Ant1_NTNV 802.11ax(HEW40)_HCH_5795MHz_SU_ / _Ant1_NTNV Page 23 of 125 Report No.: 8333EU011811W-AG 2. Bandwidth 2.1 Test Result 2.1.1 OBW Mode TX Type Frequency (MHz) RU RU Pos ANT 99% Occupied Bandwidth (MHz) Verdict Result Limit 802.11a SISO 5180 / / 1 17.446 / Pass 5200 / / 1 17.574 / Pass 5240 / / 1 17.659 / Pass 5745 / / 1 17.692 / Pass 5785 / / 1 17.766 / Pass 5825 / / 1 17.772 / Pass 802.11n (HT20) SISO 5180 / / 1 18.729 / Pass 5200 / / 1 18.789 / Pass 5240 / / 1 18.665 / Pass 5745 / / 1 18.839 / Pass 5785 / / 1 18.659 / Pass 5825 / / 1 18.887 / Pass 802.11n (HT40) SISO 5190 / / 1 37.135 / Pass 5230 / / 1 36.940 / Pass 5755 / / 1 37.528 / Pass 5795 / / 1 37.102 / Pass 802.11ac (VHT20) SISO 5180 / / 1 18.512 / Pass 5200 / / 1 18.893 / Pass 5240 / / 1 18.764 / Pass 5745 / / 1 18.914 / Pass 5785 / / 1 18.865 / Pass 5825 / / 1 18.937 / Pass 802.11ac (VHT40) SISO 5190 / / 1 36.997 / Pass 5230 / / 1 36.997 / Pass 5755 / / 1 37.085 / Pass 5795 / / 1 37.167 / Pass 802.11ac (VHT80) SISO 5210 / / 1 76.149 / Pass 5775 / / 1 76.826 / Pass 802.11ax (HEW20) SISO 5180 SU / 1 19.335 / Pass 5200 SU / 1 19.325 / Pass 5240 SU / 1 19.233 / Pass 5745 SU / 1 19.410 / Pass 5785 SU / 1 19.366 / Pass 5825 SU / 1 19.533 / Pass 802.11ax (HEW40) SISO 5190 SU / 1 38.285 / Pass 5230 SU / 1 38.237 / Pass 5755 SU / 1 38.406 / Pass 5795 SU / 1 38.343 / Pass Page 24 of 125 Report No.: …

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Page 67 of 125 Report No.: 8333EU011811W-AG 802.11a_MCH_5785MHz_Ant1_NTNV 802.11a_HCH_5825MHz_Ant1_NTNV Page 68 of 125 Report No.: 8333EU011811W-AG 802.11n(HT20)_LCH_5180MHz_Ant1_NTNV 802.11n(HT20)_MCH_5200MHz_Ant1_NTNV Page 69 of 125 Report No.: 8333EU011811W-AG 802.11n(HT20)_HCH_5240MHz_Ant1_NTNV 802.11n(HT20)_LCH_5745MHz_Ant1_NTNV Page 70 of 125 Report No.: 8333EU011811W-AG 802.11n(HT20)_MCH_5785MHz_Ant1_NTNV 802.11n(HT20)_HCH_5825MHz_Ant1_NTNV Page 71 of 125 Report No.: 8333EU011811W-AG 802.11n(HT40)_LCH_5190MHz_Ant1_NTNV 802.11n(HT40)_HCH_5230MHz_Ant1_NTNV Page 72 of 125 Report No.: 8333EU011811W-AG 802.11n(HT40)_LCH_5755MHz_Ant1_NTNV 802.11n(HT40)_HCH_5795MHz_Ant1_NTNV Page 73 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT20)_LCH_5180MHz_Ant1_NTNV 802.11ac(VHT20)_MCH_5200MHz_Ant1_NTNV Page 74 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT20)_HCH_5240MHz_Ant1_NTNV 802.11ac(VHT20)_LCH_5745MHz_Ant1_NTNV Page 75 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT20)_MCH_5785MHz_Ant1_NTNV 802.11ac(VHT20)_HCH_5825MHz_Ant1_NTNV Page 76 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT40)_LCH_5190MHz_Ant1_NTNV 802.11ac(VHT40)_HCH_5230MHz_Ant1_NTNV Page 77 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT40)_LCH_5755MHz_Ant1_NTNV 802.11ac(VHT40)_HCH_5795MHz_Ant1_NTNV Page 78 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT80)_MCH_5210MHz_Ant1_NTNV 802.11ac(VHT80)_MCH_5775MHz_Ant1_NTNV Page 79 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW20)_LCH_5180MHz_SU_ / _Ant1_NTNV 802.11ax(HEW20)_MCH_5200MHz_SU_ / _Ant1_NTNV Page 80 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW20)_HCH_5240MHz_SU_ / _Ant1_NTNV 802.11ax(HEW20)_LCH_5745MHz_SU_ / _Ant1_NTNV Page 81 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW20)_MCH_5785MHz_SU_ / _Ant1_NTNV 802.11ax(HEW20)_HCH_5825MHz_SU_ / _Ant1_NTNV Page 82 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW40)_LCH_5190MHz_SU_ / _Ant1_NTNV 802.11ax(HEW40)_HCH_5230MHz_SU_ / _Ant1_NTNV Page 83 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW40)_LCH_5755MHz_SU_ / _Ant1_NTNV 802.11ax(HEW40)_HCH_5795MHz_SU_ / _Ant1_NTNV Page 84 of 125 Report No.: 8333EU011811W-AG 4. Maximum Power Spectral Density 4.1 Test Result 4.1.1 PSD Mode TX Type Frequency (MHz) RU RU Pos Maximum PSD (dBm/MHz) Verdict ANT1 Limit 802.11a SISO 5180 / / -2.48 <=11 Pass 5200 / / -3.20 <=11 Pass 5240 / / -2.09 <=11 Pass 802.11n (HT20) SISO 5180 / / -3.15 <=11 Pass 5200 / / -3.10 <=11 Pass 5240 / / -2.04 <=11 Pass 802.11n (HT40) SISO 5190 / / -7.56 <=11 Pass 5230 / / -4.34 <=11 Pass 802.11ac (VHT20) SISO 5180 / / -3.67 <=11 Pass 5200 / / -1.82 <=11 Pass 5240 / / -3.01 <=11 Pass 802.11ac (VHT40) SISO 5190 / / -7.06 <=11 Pass 5230 / / -5.64 <=11 Pass 802.11ac (VHT80) SISO 5210 / / -7.86 <=11 Pass 802.11ax (HEW20) SISO 5180 SU / -1.95 <=11 Pass 5200 SU / -3.39 <=11 Pass 5240 SU / -3.05 <=11 Pass 802.11ax (HEW40) SISO 5190 SU / -5.14 <=11 Pass 5230 SU / -4.47 <=11 Pass Page 85 of 125 Report No.: 8333EU011811W-AG 4.1.2 PSD-Band3 Mode TX Type Frequency (MHz) RU RU Pos Maximum PSD (dBm/500kHz) Verdict ANT1 Limit 802.11a SISO 5745 / / -5.41 <=30 Pass 5785 / / -4.40 <=30 Pass 5825 / / -4.17 <=30 Pass 802.11n (HT20) SISO 5745 / / -7.26 <=30 Pass 5785 / / -4.97 <=30 Pass 5825 / / -4.97 <=30 Pass 802.11n (HT40) SISO 5755 / / -9.68 <=30 Pass 5795 / / -8.35 <=30 Pass 802.11ac (VHT20) SISO 5745 / / -5.31 <=30 Pass 5785 / / -5.00 <=30 Pass 5825 / / -6.03 <=30 Pass 802.11ac (VHT40) SISO 5755 / / -8.67 <=30 Pass 5795 / / -8.23 <=30 Pass 802.11ac (VHT80) SISO 5775 / / -10.69 <=30 Pass 802.11ax (HEW20) SISO 5745 SU / -5.19 <=30 Pass 5785 SU / -5.19 <=30 Pass 5825 SU / -5.70 <=30 Pass 802.11ax (HEW40) SISO 5755 SU / -8.59 <=30 Pass 5795 SU / -7.56 <=30 Pass Page 86 of 125 Report No.: 8333EU011811W-AG 4.2 Test Graph 4.2.1 PSD 802.11a_LCH_5180MHz_Ant1_NTNV 802.11a_MCH_5200MHz_Ant1_NTNV Page 87 of 125 Report No.: 8333EU011811W-AG 802.11a_HCH_5240MHz_Ant1_NTNV 802.11n(HT20)_LCH_5180MHz_Ant1_NTNV Page 88 of 125 Report No.: 8333EU011811W-AG 802.11n(HT20)_MCH_5200MHz_Ant1_NTNV 802.11n(HT20)_HCH_5240MHz_Ant1_NTNV Page 89 of 125 Report No.: 8333EU011811W-AG 802.11n(HT40)_LCH_5190MHz_Ant1_NTNV 802.11n(HT40)_HCH_5230MHz_Ant1_NTNV Page 90 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT20)_LCH_5180MHz_Ant1_NTNV 802.11ac(VHT20)_MCH_5200MHz_Ant1_NTNV Page 91 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT20)_HCH_5240MHz_Ant1_NTNV 802.11ac(VHT40)_LCH_5190MHz_Ant1_NTNV Page 92 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT40)_HCH_5230MHz_Ant1_NTNV 802.11ac(VHT80)_MCH_5210MHz_Ant1_NTNV Page 93 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW20)_LCH_5180MHz_SU_ / _Ant1_NTNV 802.11ax(HEW20)_MCH_5200MHz_SU_ / _Ant1_NTNV Page 94 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW20)_HCH_5240MHz_SU_ / _Ant1_NTNV 802.11ax(HEW40)_LCH_5190MHz_SU_ / _Ant1_NTNV Page 95 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW40)_HCH_5230MHz_SU_ / _Ant1_NTNV Page 96 of 125 Report No.: 8333EU011811W-AG 4.2.2 PSD-Band3 802.11a_LCH_5745MHz_Ant1_NTNV 802.11a_MCH_5785MHz_Ant1_NTNV Page 97 of 125 Report No.: 8333EU011811W-AG 802.11a_HCH_5825MHz_Ant1_NTNV 802.11n(HT20)_LCH_5745MHz_Ant1_NTNV Page 98 of 125 Report No.: 8333EU011811W-AG 802.11n(HT20)_MCH_5785MHz_Ant1_NTNV 802.11n(HT20)_HCH_5825MHz_Ant1_NTNV Page 99 of 125 Report No.: 8333EU011811W-AG 802.11n(HT40)_LCH_5755MHz_Ant1_NTNV 802.11n(HT40)_HCH_5795MHz_Ant1_NTNV Page 100 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT20)_LCH_5745MHz_Ant1_NTNV 802.11ac(VHT20)_MCH_5785MHz_Ant1_NTNV Page 101 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT20)_HCH_5825MHz_Ant1_NTNV 802.11ac(VHT40)_LCH_5755MHz_Ant1_NTNV Page 102 of 125 Report No.: 8333EU011811W-AG 802.11ac(VHT40)_HCH_5795MHz_Ant1_NTNV 802.11ac(VHT80)_MCH_5775MHz_Ant1_NTNV Page 103 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW20)_LCH_5745MHz_SU_ / _Ant1_NTNV 802.11ax(HEW20)_MCH_5785MHz_SU_ / _Ant1_NTNV Page 104 of 125 Report No.: 8333EU011811W-AG 802.11ax(HEW20)_HCH_5825MHz_SU_ / _Ant1_NTNV 802.11ax(HEW40)_LCH_5755MHz_SU_ / _Ant1_NTNV Page 105 of 125 Report No.: 8…

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TRF No.: FCC Part 15 Subpart E (A01) TEST REPORT Report No.: 8333EU011811W4 Applicant: SHENZHEN ELECTRON TECHNOLOGY CO., LTD. Address: Bld.2, Yingfeng Industrial Zone, Tantou Community, Songgang Street, Bao’an, Shenzhen, China Product Name: Android Digital Signage Model No.: WL1539T Trademark: N/A FCC ID: 2ABC5-E0102 Test Standard(s): 47 CFR Part 15 Subpart E Test Result: Pass Date of Receipt: Aug. 18, 2025 Test Date: Aug. 18, 2025 – Sep. 03, 2025 Date of Issue: Nov. 06, 2025 ISSUED BY: SHENZHEN EU TESTING LABORATORY LIMITED Prepared by: Reviewed and Approved by: ____________________ _____________________ Mikey Zhu/ Engineer Sally Zhang/ Manager Page 2 of 69 Report No.: 8333EU011811W4 TRF No.: FCC Part 15 Subpart E (A01) Revision Record Report Version Issued Date Description Status V0 Nov. 06, 2025 Original Valid Page 3 of 69 Report No.: 8333EU011811W4 TRF No.: FCC Part 15 Subpart E (A01) Table of Contents 1 COVER PAGE .................................................................................................................................. 1 2 GENERAL INFORMATION ...................................................................................................................... 5 2.1 APPLICANT INFORMATION .................................................................................................................. 5 2.2 MANUFACTURER INFORMATION .......................................................................................................... 5 2.3 FACTORY INFORMATION ..................................................................................................................... 5 2.4 GENERAL DESCRIPTION OF E.U.T. ..................................................................................................... 5 2.5 TECHNICAL INFORMATION OF E.U.T. .................................................................................................. 6 3 TEST SUMMARY .................................................................................................................................... 11 3.1 TEST STANDARD ............................................................................................................................. 11 3.2 TEST VERDICT ................................................................................................................................. 11 3.3 TEST LABORATORY ......................................................................................................................... 12 4 TEST CONFIGURATION ........................................................................................................................ 13 4.1 TEST ENVIRONMENT ........................................................................................................................ 13 4.2 TEST EQUIPMENT ............................................................................................................................ 13 4.3 DESCRIPTION OF SUPPORT UNIT ...................................................................................................... 14 4.4 TEST MODE .................................................................................................................................... 14 4.5 DESCRIPTION OF CALCULATION ....................................................................................................... 14 4.6 MEASUREMENT UNCERTAINTY ......................................................................................................... 15 4.7 DEVIATION FROM STANDARDS ......................................................................................................... 15 4.8 ABNORMALITIES FROM STANDARD CONDITION ................................................................................. 15 5 TEST ITEMS ........................................................................................................................................... 16 5.1 ANTENNA REQUIREMENT .................................................................................................................. 16 5.1.1 Test Requirement ........................................................................................................... 16 5.1.2 Antenna Anti-Replacement Construction .....................…

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