PRDKB57AmazonBasics Wireless Keyboard

Acrox Technologies 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 3/17/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: PRDKB57 Per section 2.911(d)(7) of the FCC rules, Acrox Technologies 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: Company Name: 1PerfectChoice, Inc. FCC Registration Number (FRN): 0033429309 Physical U.S. Company Address: 21908 Valley Blvd., Walnut, CA 91789 Contact Person: Choon Kek Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant 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: Agent Signed (if different from Applicant): Signed: Signed: Printed name: Gavin Hsieh Printed name: Choon Kek Title: Product Manager Title: Chief Operating Officer Company Name: Acrox Technologies Co., Ltd. Company Name: 1PerfectChoice, Inc. Date: 3/17/2023 Date: 3/17/2023

Acrox Technologies Co., Ltd. Covered Equipment Certification Attestation Letter 3/23/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: PRDKB57 Acrox Technologies 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 an entity producing “covered” equipment. Signed: Printed name: Gavin Hsieh Title: Product Manager Company Name: Acrox Technologies Co., Ltd. Date: 3/23/2023

Acrox Technologies Co., Ltd. Covered Equipment Certification Attestation Letter 3/23/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: PRDKB57 Acrox Technologies 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. Signed: Printed name: Gavin Hsieh Title: Product Manager Company Name: Acrox Technologies Co., Ltd. Date: 3/23/2023

DATE : 3/23/2023 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint EST Technology Co., Ltd. Address:Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, 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 Acrox Technologies Co., Ltd. Address:4F., No.89, Minshan St., Neihu Dist., Taipei City 114, Taiwan <Signature> Name：Gavin Hsieh Title： Product Manager Applicant Company： Acrox Technologies Co., Ltd.

DATE : 3/23/2023 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: PRDKB57 Product Name: AmazonBasics Wireless Keyboard Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  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：Gavin Hsieh Title： Product Manager Company：Acrox Technologies Co., Ltd.

External Photos M/N: KS1-US External Photos M/N: KS1-US External Photos M/N: KS1-US

Label Location

Internal Photos M/N: KS1-US Internal Photos M/N: KS1-US Internal Photos M/N: KS1-US 2.4G SRD Antenna

FCC ID: PRDKB57 EST Technology Co., Ltd Report No. ESTE-R2303108 Page 1 of 3 FCC RF EXPOSURE REPORT Acrox Technologies Co., Ltd. AmazonBasics Wireless Keyboard Model Number: KS1-US FCC ID: PRDKB57 Applicant: Acrox Technologies Co., Ltd. Address: 4F., No.89, Minshan St., Neihu Dist., Taipei City 114, Taiwan Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2303108 Date of Test: Feb. 21, ~ Mar. 09, 2023 Date of Report: Mar. 14, 2023 FCC ID: PRDKB57 EST Technology Co., Ltd Report No. ESTE-R2303108 Page 2 of 3 1. Applicable Standards FCC Part 2(Section 2.1093) FCC KDB 447498 D04 Interim General RF Exposure Guidance v01 2. Exposure Evaluation of Portable or Mobile Devices Human exposure to RF emissions from portable devices (47 CFR §2.1093), as defined by the FCC, must be evaluated with respect to the FCC-adopted limits for SAR. Evaluation of mobile devices, as defined by the FCC, may also be performed with respect to SAR limits, but in such cases it is usually simpler and more cost-effective to evaluate compliance with respect to field strength or power density limits. For certain devices that are designed to be used in both mobile and portable configurations similar to those described in 47 CFR §2.1091(d)(4), such as certain desktop phones and wireless modem modules, compliance for mobile configurations is also satisfied when the same device is evaluated for SAR compliance in portable configurations. The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 300 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. FCC ID: PRDKB57 EST Technology Co., Ltd Report No. ESTE-R2303108 Page 3 of 3 3. Evaluation Results For 2.4G SRD Field strength = 69.71dBuV/m@3m P={ [10 (69.71 /20) /10 6 *3] 2 /30 }*1000mW = 0.003mW< 2.72mW Note: 1. Limited=3060*(0.5/20)^x, x=-log(60/(3060*√f)). 2. We choose f=2.48GHz (Highest frequency operate) to calculate MPE limit as higher frequency will have lower MPE limits. 3. SAR Test Exclusion Thresholds is 2.72mW for separation distance 5mm. Therefore, SAR test is not required. End of Test Report

Summary Inverted F Antenna Specification ITEM ANT SPEC Model Name 2.4G ANT Center Frequency Horizontal Vertical 2400MHz 2450MHz 2500MHz 2400MHz 2450MHz 2500MHz -1.73 -0.84 -0.68 -6.15 -3.70 -2.32 MAX. Gain -0.68dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Manufacturer: Acrox Technologies Co., Ltd. Address: Hsinmin Industria, Changan Town, Dongguan City, Guangdong, China Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Frequency (MHz) Gain(dB) Max Min Avg 2400 -1.73178 -30.0815 -8.48713 2450 -0.845801 -38.5605 -7.88012 2500 -0.685586 -24.0318 -6.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Frequency (MHz) Gain(dB) Max Min Avg 2400 -6.1530 -24.1420 -13.0295 2450 -3.7054 -26.5836 -10.6700 2500 -2.32122 -30.4301 -9.70536 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

FCC ID: PRDKB57 EST Technology Co., Ltd Report No.ESTE-R2303107 Page 1 of 47 FCC PART 15C TEST REPORT FOR CERTIFICATION On Behalf of Acrox Technologies Co., Ltd. AmazonBasics Wireless Keyboard Model Number: KS1-US FCC ID: PRDKB57 Applicant Acrox Technologies Co., Ltd. Address: 4F., No.89, Minshan St., Neihu Dist., Taipei City 114, Taiwan Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2303107 Date of Test: Feb. 21, ~ Mar. 09, 2023 Date of Report: Mar. 14, 2023 FCC ID: PRDKB57 EST Technology Co., Ltd Report No.ESTE-R2303107 Page 2 of 47 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION......................................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................. 4 1.1. Description of Device (EUT) ........................................................................................................... 4 1.2. Antenna Information ........................................................................................................................ 4 1.3. Information of RF Cable .................................................................................................................. 4 2. SUMMARY OF TEST ......................................................................................................................... 5 2.1. Summary of test result ...................................................................................................................... 5 2.2. Test Facilities ................................................................................................................................... 6 2.3. Measurement uncertainty ................................................................................................................. 7 2.4. Assistant equipment used for test ..................................................................................................... 7 2.5. Block Diagram ................................................................................................................................. 7 2.6. Test Mode ......................................................................................................................................... 8 2.7. Power Setting of Test Software ........................................................................................................ 8 2.8. Channel List ..................................................................................................................................... 9 2.9. Test Equipment List ....................................................................................................................... 10 3. FIELD STRENGTH OF FUNDAMENTAL ............................................................................................ 11 3.1. Limit ............................................................................................................................................... 11 3.2. Test Setup ....................................................................................................................................... 11 3.3. Spectrum Analyzer Setting ............................................................................................................. 11 3.4. Test Procedure ................................................................................................................................ 12 3.5. Test Result ...................................................................................................................................... 13 4. RADIATED SPURIOUS EMISSIONS AND BAND EDGE ...................................................................... 20 4.1. Limit ............................................................................................................................................... 20 4.2. Test Setup ....................................................................................................................................... 22 4.3. Spectrum Analyzer Setting ............................................................................................................. 23 4.4. Test Procedure ................................................................................................................................ 24 4.5. Test Result ...................................................................................................................................... 25 5. 20DB BANDWIDTH ........................................................................................................................ 37 5.1. Limit ............................................................................................................................................... 37 5.2. Test Setup ....................................................................................................................................... 37 5.3. Spectrum Analyzer Setting ............................................................................................................. 37 5.4. Test Procedure ................................................................................................................................ 37 5.5. Test Condition ................................................................................................................................ 37 5.6. Test Result ...................................................................................................................................... 38 6. ANTENNA REQUIREMENTS ............................................................................................................ 40 6.1. Limit ................................................................................................................................…

Text truncated - open the document above for the full version.

Radiated Test (30-1000 MHz) Radiated Test (Above 1GHz)