2A6P9-WCPAA-2SWireless CPAA adaptor

FCC Warning This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE 1: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. RF Exposure Statement To maintain compliance with FCC'S RF Exposure guidelines, This equipment should be installed and operated with minimum distance of 20cm between the radiator and your body. This device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter.

Promaster Electronic LLC Covered Equipment Certification Attestation Letter 4/20/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2A6P9-WCPAA-2S Promaster Electronic 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. 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. Promaster Electronic 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 a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Promaster Electronic LLC (“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: Antonio Lopez Title: President Company Name: Promaster Electronic LLC Date: 4/20/2026

Promaster Electronic LLC U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: April 20, 2026 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2A6P9-WCPAA-2S Promaster Electronic LLC(“the applicant”) certifies that, as of the date of the filing of the application, Promaster Electronic LLC (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts to maintain an agent for service of process in the United States for no less than one 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. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. Promaster Electronic LLC ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name: Promaster Electronic LLC FRN: 0032356586 Address: 25275 Budde Rd Suite 31 Spring Texas United States 77380 Signature: Contact Person: Antonio Lopez Tel: (832) 813-5123 Email: Promaster Electronic LLC Applicant Company Name: Promaster Electronic LLC FRN: 0032356586 Address: 25275 Budde Rd Suite 31 Spring Texas United States 77380 Signature: Contact Person: Antonio Lopez Tel: (832) 813-5123 Email: Promaster Electronic LLC

DATE: April 20, 2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen CCUT Quality Technology Co., Ltd. (1F, Building 35, Changxing Technology Indstrl Park Changzhen Community, Yutang Street,Shenzhen,China) 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 Promaster Electronic LLC (25275 Budde Rd Suite 31 Spring Texas United States 77380). <Signature> Name: Antonio Lopez Title: President Company: Promaster Electronic LLC

Date: April 20, 2026 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, <Signature> Name: Antonio Lopez Title: President Company: Promaster Electronic LLC

DATE: April 20, 2026 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2A6P9-WCPAA-2S Product Name: Wireless CPAA adaptor 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. <Signature> Name: Antonio Lopez Title: President Company: Promaster Electronic LLC

Promaster Electronic LLC Model Difference Statement Dear Sir/Madam, FCC ID: 2A6P9-WCPAA-2S Added models WCPAA-2S-O, WCPAA-2S-MB, WCPAA-2S-B, WCPAA-2S-BR, WCPAA-2S-S, WCPAA-2S-C basis of the original product WCPAA-2S The manufacturer declares that the listed series models have different appearance colors and model names from the main model, but the circuits and electronic structures are the same. Sincerely, <Signature> Name: Antonio Lopez Title: President Company: Promaster Electronic LLC

Report No: SSP26030288-1&2&3&4E FCC ID: 2A6P9-WCPAA-2S Annex of Test Report Annex A. EUT External Photos Model: WCPAA-2S EUT View 1 EUT View 2 Report No: SSP26030288-1&2&3&4E FCC ID: 2A6P9-WCPAA-2S Annex of Test Report EUT View 3 EUT View 4 Report No: SSP26030288-1&2&3&4E FCC ID: 2A6P9-WCPAA-2S Annex of Test Report EUT View 5 EUT View 6 Report No: SSP26030288-1&2&3&4E FCC ID: 2A6P9-WCPAA-2S Annex of Test Report EUT View 7 EUT View 8

Report No: SSP26030288-1&2&3&4E FCC ID: 2A6P9-WCPAA-2S Annex of Test Report Annex D. Label and Information FCC Label Sample Label Size: 3cm * 2cm FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

Report No: SSP26030288-1&2&3&4E FCC ID: 2A6P9-WCPAA-2S Annex of Test Report Annex B. EUT Internal Photos EUT Internal View 1 EUT Internal View 2 Report No: SSP26030288-1&2&3&4E FCC ID: 2A6P9-WCPAA-2S Annex of Test Report EUT Internal View 3 EUT Internal View 4 BT PCB Antenna 2.4GWIFI PCB Antenna 5GWIFI PCB Antenna Report No: SSP26030288-1&2&3&4E FCC ID: 2A6P9-WCPAA-2S Annex of Test Report EUT Internal View 5

FCC ID: 2A6P9-WCPAA-2S RF Exposure Evaluation 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) Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm2) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f2) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f2) 30 30–300 27.5 0.073 0.2 30 300–1500 f/1500 30 1500–100,000 1.0 30 f = frequency in MHz Friis transmission formula: Pd = (Pout*G)/(4*pi*r2) Where Pd = power density in mW/cm2, 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 id the limit of MPE, 1 mW/cm2. If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. Test Result of RF Exposure Evaluation BLE Mode Output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result BLE_1Mbps -4.54 0.352 0.0001 1.0 PASS BR+EDR Mode Output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result GFSK -4.61 0.346 0.0001 1.0 PASS 2.4G Wi-Fi Mode Output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result 802.11b 6.94 4.94 0.0010 1.0 PASS 5.2G Wi-Fi Mode Output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result 802.11a 5.78 3.78 0.0008 1.0 PASS 5.8G Wi-Fi Mode Output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result 802.11a 5.13 3.26 0.0006 1.0 PASS Remark: BT antenna gain=-0.11dBi, 2.4G antenna gain=2.35dBi, 5G antenna gain=2.54dBi The device cannot transmit with 2.4G WI-FI and 5.2, 5.8G WI-FI simultaneously, can transmit with 2.4G WI-FI ,5.2, 5.8G WI-FI and BT simultaneously. Calculations for simultaneously transmit Mode Ratios Result Limit Result BR+EDR 0.0001 0.0012 1 PASS BLE 0.0001 2.4G Wi-Fi 0.0010 Mode Ratios Result Limit Result BR+EDR 0.0001 0.0010 1 PASS BLE 0.0001 5.2G Wi-Fi 0.0008 Mode Ratios Result Limit Result BR+EDR 0.0001 0.0008 1 PASS BLE 0.0001 5.8G Wi-Fi 0.0006 Ratios = Power Density / Power density Limit So a SAR test is not required

Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 1. Duty Cycle Condition Mode Frequency (MHz) Antenna Duty Cycle (%) Correction Factor (dB) 1/T (kHz) NVNT a 5180 Ant1 34.56 4.61 4.08 NVNT a 5200 Ant1 77.29 1.12 4.08 NVNT a 5240 Ant1 33.98 4.69 4.1 NVNT n20 5180 Ant1 57.44 2.41 4.46 NVNT n20 5200 Ant1 52.58 2.79 4.46 NVNT n20 5240 Ant1 53.72 2.7 4.46 NVNT n40 5190 Ant1 42.72 3.69 7.75 NVNT n40 5230 Ant1 48.69 3.13 7.69 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Duty Cycle NVNT a 5180MHz Ant1 Duty Cycle NVNT a 5200MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Duty Cycle NVNT a 5240MHz Ant1 Duty Cycle NVNT n20 5180MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Duty Cycle NVNT n20 5200MHz Ant1 Duty Cycle NVNT n20 5240MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Duty Cycle NVNT n40 5190MHz Ant1 Duty Cycle NVNT n40 5230MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 2. Maximum Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Duty Factor (dB) Total Power (dBm) Limit (dBm) Verdict NVNT a 5180 Ant1 1.17 4.61 5.78 24 Pass NVNT a 5200 Ant1 0.34 1.12 1.46 24 Pass NVNT a 5240 Ant1 -2.55 4.69 2.14 24 Pass NVNT n20 5180 Ant1 -1.04 2.41 1.37 24 Pass NVNT n20 5200 Ant1 0.17 2.79 2.96 24 Pass NVNT n20 5240 Ant1 1.52 2.7 4.22 24 Pass NVNT n40 5190 Ant1 -3.05 3.69 0.64 24 Pass NVNT n40 5230 Ant1 -2.77 3.13 0.36 24 Pass Note: Total power=Conducted power + Duty factor Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Power NVNT a 5180MHz Ant1 Power NVNT a 5200MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Power NVNT a 5240MHz Ant1 Power NVNT n20 5180MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Power NVNT n20 5200MHz Ant1 Power NVNT n20 5240MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Power NVNT n40 5190MHz Ant1 Power NVNT n40 5230MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 3. -26dB Bandwidth Condition Mode Frequency (MHz) Antenna -26 dB Bandwidth (MHz) Verdict NVNT a 5180 Ant1 22.023 Pass NVNT a 5200 Ant1 21.888 Pass NVNT a 5240 Ant1 21.579 Pass NVNT n20 5180 Ant1 23.238 Pass NVNT n20 5200 Ant1 23.588 Pass NVNT n20 5240 Ant1 23.148 Pass NVNT n40 5190 Ant1 47.486 Pass NVNT n40 5230 Ant1 45.965 Pass Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S -26dB Bandwidth NVNT a 5180MHz Ant1 -26dB Bandwidth NVNT a 5200MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S -26dB Bandwidth NVNT a 5240MHz Ant1 -26dB Bandwidth NVNT n20 5180MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S -26dB Bandwidth NVNT n20 5200MHz Ant1 -26dB Bandwidth NVNT n20 5240MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S -26dB Bandwidth NVNT n40 5190MHz Ant1 -26dB Bandwidth NVNT n40 5230MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 4. Occupied Channel Bandwidth Condition Mode Frequency (MHz) Antenna 99% OBW (MHz) NVNT a 5180 Ant1 16.524 NVNT a 5200 Ant1 16.562 NVNT a 5240 Ant1 16.501 NVNT n20 5180 Ant1 17.717 NVNT n20 5200 Ant1 17.728 NVNT n20 5240 Ant1 17.707 NVNT n40 5190 Ant1 36.34 NVNT n40 5230 Ant1 36.269 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S OBW NVNT a 5180MHz Ant1 OBW NVNT a 5200MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S OBW NVNT a 5240MHz Ant1 OBW NVNT n20 5180MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S OBW NVNT n20 5200MHz Ant1 OBW NVNT n20 5240MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S OBW NVNT n40 5190MHz Ant1 OBW NVNT n40 5230MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 5. Maximum Power Spectral Density Level Condition Mode Frequency (MHz) Antenna Conducted PSD (dBm) Duty Factor (dB) Total PSD (dBm) Limit (dBm) Verdict NVNT a 5180 Ant1 -10.44 4.61 -5.83 11 Pass NVNT a 5200 Ant1 -9.59 1.12 -8.47 11 Pass NVNT a 5240 Ant1 -11.54 4.69 -6.85 11 Pass NVNT n20 5180 Ant1 -10.51 2.41 -8.1 11 Pass NVNT n20 5200 Ant1 -11.78 2.79 -8.99 11 Pass NVNT n20 5240 Ant1 -8.59 2.7 -5.89 11 Pass NVNT n40 5190 Ant1 -13.01 3.69 -9.32 11 Pass NVNT n40 5230 Ant1 -12.85 3.13 -9.72 11 Pass Note: Total PSD=Conducted PSD + Duty factor Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S PSD NVNT a 5180MHz Ant1 PSD NVNT a 5200MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S PSD NVNT a 5240MHz Ant1 PSD NVNT n20 5180MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S PSD NVNT n20 5200MHz Ant1 PSD NVNT n20 5240MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S PSD NVNT n40 5190MHz Ant1 PSD NVNT n40 5230MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 6. Band Edge Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT a 5180 Ant1 -46.35 -27 Pass NVNT a 5240 Ant1 -46.91 -27 Pass NVNT n20 5180 Ant1 -47.07 -27 Pass NVNT n20 5240 Ant1 -46.96 -27 Pass NVNT n40 5190 Ant1 -43.75 -27 Pass NVNT n40 5230 Ant1 -47.47 -27 Pass Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Band Edge NVNT a 5180MHz Low Ant1 Band Edge NVNT a 5240MHz High Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Band Edge NVNT n20 5180MHz Low Ant1 Band Edge NVNT n20 5240MHz High Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Band Edge NVNT n40 5190MHz Low Ant1 Band Edge NVNT n40 5230MHz High Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 7. Conducted RF Spurious Emission Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT a 5180 Ant1 -34.54 -27 Pass NVNT a 5200 Ant1 -34.78 -27 Pass NVNT a 5240 Ant1 -33.49 -27 Pass NVNT n20 5180 Ant1 -34.48 -27 Pass NVNT n20 5200 Ant1 -34.7 -27 Pass NVNT n20 5240 Ant1 -34.82 -27 Pass NVNT n40 5190 Ant1 -33.88 -27 Pass NVNT n40 5230 Ant1 -34.47 -27 Pass Note: Testing is carried out with frequency rang 30MHz to the 40GHz, above 27GHz not recorded for no spurious point have a margin of less than 20 dB with respect to the limits Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Tx. Spurious NVNT a 5180MHz Ant1 Emission Tx. Spurious NVNT a 5200MHz Ant1 Emission Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Tx. Spurious NVNT a 5240MHz Ant1 Emiss…

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Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 1. Duty Cycle Condition Mode Frequency (MHz) Antenna Duty Cycle (%) Correction Factor (dB) 1/T (kHz) NVNT a 5745 Ant1 68.54 1.64 4.1 NVNT a 5785 Ant1 64.38 1.91 4.1 NVNT a 5825 Ant1 59.51 2.25 4.1 NVNT n20 5745 Ant1 59.42 2.26 4.46 NVNT n20 5785 Ant1 75.68 1.21 4.46 NVNT n20 5825 Ant1 75.68 1.21 4.46 NVNT n40 5755 Ant1 48.85 3.11 7.81 NVNT n40 5795 Ant1 52.87 2.77 7.75 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Duty Cycle NVNT a 5745MHz Ant1 Duty Cycle NVNT a 5785MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Duty Cycle NVNT a 5825MHz Ant1 Duty Cycle NVNT n20 5745MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Duty Cycle NVNT n20 5785MHz Ant1 Duty Cycle NVNT n20 5825MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Duty Cycle NVNT n40 5755MHz Ant1 Duty Cycle NVNT n40 5795MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 2. Maximum Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Duty Factor (dB) Total Power (dBm) Limit (dBm) Verdict NVNT a 5745 Ant1 2.57 1.64 4.21 30 Pass NVNT a 5785 Ant1 3.22 1.91 5.13 30 Pass NVNT a 5825 Ant1 2.5 2.25 4.75 30 Pass NVNT n20 5745 Ant1 2.1 2.26 4.36 30 Pass NVNT n20 5785 Ant1 2.22 1.21 3.43 30 Pass NVNT n20 5825 Ant1 1.18 1.21 2.39 30 Pass NVNT n40 5755 Ant1 2.02 3.11 5.13 30 Pass NVNT n40 5795 Ant1 2 2.77 4.77 30 Pass Note: Total power=Conducted power + Duty factor Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Power NVNT a 5745MHz Ant1 Power NVNT a 5785MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Power NVNT a 5825MHz Ant1 Power NVNT n20 5745MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Power NVNT n20 5785MHz Ant1 Power NVNT n20 5825MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Power NVNT n40 5755MHz Ant1 Power NVNT n40 5795MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 3. -6dB Bandwidth Condition Mode Frequency (MHz) Antenna -6 dB Bandwidth (MHz) Limit -6 dB Bandwidth (MHz) Verdict NVNT a 5745 Ant1 16.515 0.5 Pass NVNT a 5785 Ant1 16.484 0.5 Pass NVNT a 5825 Ant1 16.432 0.5 Pass NVNT n20 5745 Ant1 17.71 0.5 Pass NVNT n20 5785 Ant1 17.672 0.5 Pass NVNT n20 5825 Ant1 17.645 0.5 Pass NVNT n40 5755 Ant1 36.395 0.5 Pass NVNT n40 5795 Ant1 36.482 0.5 Pass Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S -6dB Bandwidth NVNT a 5745MHz Ant1 -6dB Bandwidth NVNT a 5785MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S -6dB Bandwidth NVNT a 5825MHz Ant1 -6dB Bandwidth NVNT n20 5745MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S -6dB Bandwidth NVNT n20 5785MHz Ant1 -6dB Bandwidth NVNT n20 5825MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S -6dB Bandwidth NVNT n40 5755MHz Ant1 -6dB Bandwidth NVNT n40 5795MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 4. Occupied Channel Bandwidth Condition Mode Frequency (MHz) Antenna 99% OBW (MHz) NVNT a 5745 Ant1 16.61 NVNT a 5785 Ant1 16.613 NVNT a 5825 Ant1 16.598 NVNT n20 5745 Ant1 17.838 NVNT n20 5785 Ant1 17.812 NVNT n20 5825 Ant1 17.838 NVNT n40 5755 Ant1 36.454 NVNT n40 5795 Ant1 36.497 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S OBW NVNT a 5745MHz Ant1 OBW NVNT a 5785MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S OBW NVNT a 5825MHz Ant1 OBW NVNT n20 5745MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S OBW NVNT n20 5785MHz Ant1 OBW NVNT n20 5825MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S OBW NVNT n40 5755MHz Ant1 OBW NVNT n40 5795MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 5. Maximum Power Spectral Density Level Condition Mode Frequency (MHz) Antenna Conducted PSD (dBm/510kHz) Duty Factor (dB) 10log (510/500) Total PSD dBm/500kHz) Limit (dBm/500KHz) Verdict NVNT a 5745 Ant1 -10.84 1.64 0.086 -9.29 30 Pass NVNT a 5785 Ant1 -10.25 1.91 0.086 -8.43 30 Pass NVNT a 5825 Ant1 -10 2.25 0.086 -7.84 30 Pass NVNT n20 5745 Ant1 -11.01 2.26 0.086 -8.84 30 Pass NVNT n20 5785 Ant1 -10.87 1.21 0.086 -9.75 30 Pass NVNT n20 5825 Ant1 -11.07 1.21 0.086 -9.95 30 Pass NVNT n40 5755 Ant1 -13.96 3.11 0.086 -10.94 30 Pass NVNT n40 5795 Ant1 -14.08 2.77 0.086 -11.40 30 Pass Note: Total PSD=Conducted PSD + Duty factor+(10log(Test RBW/ Limit RBW) Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S PSD NVNT a 5745MHz Ant1 PSD NVNT a 5785MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S PSD NVNT a 5825MHz Ant1 PSD NVNT n20 5745MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S PSD NVNT n20 5785MHz Ant1 PSD NVNT n20 5825MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S PSD NVNT n40 5755MHz Ant1 PSD NVNT n40 5795MHz Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 6. Band Edge Condition Mode Frequency (MHz) Antenna Max Value (dBm) Verdict NVNT a 5745 Ant1 -36.23 Pass NVNT a 5825 Ant1 -44.5 Pass NVNT n20 5745 Ant1 -38.22 Pass NVNT n20 5825 Ant1 -46.23 Pass NVNT n40 5755 Ant1 -36.48 Pass NVNT n40 5795 Ant1 -45.77 Pass Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Band Edge NVNT a 5745MHz Low Ant1 Band Edge NVNT a 5825MHz High Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Band Edge NVNT n20 5745MHz Low Ant1 Band Edge NVNT n20 5825MHz High Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Band Edge NVNT n40 5755MHz Low Ant1 Band Edge NVNT n40 5795MHz High Ant1 Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S 7. Conducted RF Spurious Emission Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT a 5745 Ant1 -34.48 -27 Pass NVNT a 5785 Ant1 -34.34 -27 Pass NVNT a 5825 Ant1 -34.26 -27 Pass NVNT n20 5745 Ant1 -34.51 -27 Pass NVNT n20 5785 Ant1 -34.43 -27 Pass NVNT n20 5825 Ant1 -34.06 -27 Pass NVNT n40 5755 Ant1 -34.12 -27 Pass NVNT n40 5795 Ant1 -34.37 -27 Pass Note: Testing is carried out with frequency rang 30MHz to the 40GHz, above 27GHz not recorded for no spurious point have a margin of less than 20dB with respect to the limits. Report No: SSP26030288-4E FCC ID: 2A6P9-WCPAA-2S Tx. Spurious NVNT a 5745MHz Ant1 Emission Tx. Spurio…

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Report No: SSP26030288-4E FCC Test Report Page 1 of 33 FCC TEST REPORT FCC ID: 2A6P9-WCPAA-2S Report No. : SSP26030288-4E Applicant : Promaster Electronic LLC Product Name : Wireless CPAA adaptor Model Name : WCPAA-2S Test Standard : FCC Part 15 Subpart E Date of Issue : 2026-03-24 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. Report No: SSP26030288-4E FCC Test Report Page 2 of 33 Test Report Basic Information Applicant..................................: Promaster Electronic LLC Address of Applicant...............: 25275 Budde Rd Suite 31, Spring, Texas, United States, 77380 Manufacturer..........................: Huizhou Funnavi Electronics Co., Ltd Address of Manufacturer........: 3rd floor, No.:25 Xiangda road Xiao Jin kou street, Huicheng district, Huizhou city, China Product Name.........................: Wireless CPAA adaptor Brand Name.............................: Autosky Main Model..............................: WCPAA-2S Series Models..........................: WCPAA-2S-O, WCPAA-2S-MB, WCPAA-2S-B, WCPAA-2S-BR, WCPAA-2S-S, WCPAA-2S-C Test Standard..........................: FCC Part 15 Subpart E KDB 789033 D02 v02r01 ANSI C63.4-2014 ANSI C63.10-2020 Date of Test .............................: 2026-03-14 to 2026-03-20 Test Result...............................: PASS Tested By ................................: (Colin Chen) Reviewed By............................: (Lorzix Luo) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. Report No: SSP26030288-4E FCC Test Report Page 3 of 33 CONTENTS 1. General Information ....................................................................................................................................................5 1.1 Product Information .............................................................................................................................................5 1.2 Test Setup Information..........................................................................................................................................7 1.3 Compliance Standards ...........................................................................................................................................8 1.4 Test Facilities ........................................................................................................................................................8 1.5 List of Measurement Instruments ..........................................................................................................................9 1.6 Measurement Uncertainty ................................................................................................................................... 10 2. Summary of Test Results ........................................................................................................................................... 11 3. Antenna Requirement ............................................................................................................................................... 12 3.1 Standard and Limit.............................................................................................................................................. 12 3.2 Test Result .......................................................................................................................................................... 12 4. Conducted Emissions ................................................................................................................................................ 13 4.1 Standard and Limit.............................................................................................................................................. 13 4.2 Test Procedure.................................................................................................................................................... 13 4.3 Test Data and Results .......................................................................................................................................... 14 5. Radiated Emissions(Below 1GHz)............................................................................................................................. 17 5.1 Standard and Limit.............................................................................................................................................. 17 5.2 Test Procedure.................................................................................................................................................... 17 5.3 Test Data and Results ..............…

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