PRDKB46AmazonBasics Wireless Keyboard with Touchpad for Smart TVs

2.402GHz-2.480GHz 2.402GHz-2.480GHz

DATE:2021.03.04 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:PRDKB46 ProductName:AmazonBasicsWirelessKeyboardwithTouchpadforSmartTVs RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommissionsrules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...)  Schematics  Blockdiagram Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. <Signature> Name:GavinHsieh Title:ProductManager Company:AcroxTechnologiesCo.,Ltd.

DATE:2021.03.04 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointESTTechnologyCo.,Ltd.Address:Chilingxiang,Qishantou,Santun, Houjie,Dongguan,Guangdong,China (NameofAgentcompanynameandaddress)toact asouragentinthepreparationofthisapplicationforequipmentcertification.Icertifythat submitteddocumentsproperlydescribethedeviceorsystemforwhichequipment certificationissought.Ialsocertifythateachunitmanufactured,importedormarketed,as definedintheFederalCommunicationsCommission’sregulationswillhaveaffixedtoita labelidenticaltothatsubmittedforapprovalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditions forcertification,stillresideswithAcroxTechnologiesCo.,Ltd.Address:4F.,No.89, MinshanSt.,NeihuDist.,TaipeiCity,114,Taiwan(ApplicantNameandaddress) <Signature> Name:GavinHsieh Title:ProductManager Company:AcroxTechnologiesCo.,Ltd.

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InternalPhotos M/N:K4N-US InternalPhotos M/N:K4N-US

FCC ID: PRDKB46 EST Technology Co., Ltd Report No. ESTE-R2103026 Page 1 of 3 FCC RF EXPOSURE REPORT Acrox Technologies Co., Ltd. AmazonBasics Wireless Keyboard with Touchpad for Smart TVs Model Number: K4N-US FCC ID: PRDKB46 Prepared for: Acrox Technologies Co., Ltd. 4F.,No.89,Minshan St., Neihu Dist., Taipei City 114,Taiwan,R.O.C Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2103026 Date of Test: Feb. 23~Mar. 03, 2021 Date of Report: Mar. 04, 2021 FCC ID: PRDKB46 EST Technology Co., Ltd Report No. ESTE-R2103026 Page 2 of 3 1. Applicable Standards FCC Part 2(Section 2.1093) FCC KD B447498 D01 General RF Exposure Guidance v06 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. SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] · [√f(GHz)] ≤3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR where • f(GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 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: PRDKB46 EST Technology Co., Ltd Report No. ESTE-R2103026 Page 3 of 3 3. Evaluation Results For 2.4G SRD Ant gain=0.9 dBi Ant numeric gain= 1.230 Field strength =73.81 dBuV/m@3m P={ [10 (73.81 /20) /10 6 *3]^ 2 / (30*1.230) }*1000mW =0.00586mW Pr=0.00586/5*1.575=0.00185<3 Note: 1. [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] * [√f(GHz)] < 3.0 2. SAR Test Exclusion Thresholds is 3.0 for separation distance 5mm. Therefore, SAR test is not required. End of Test Report

FCC ID: PRDKB46 EST Technology Co., Ltd Report No. ESTE-R2103025 Page 1 of 45 FCC PART 15C TEST REPORT FOR CERTIFICATION On Behalf of Acrox Technologies Co., Ltd. AmazonBasics Wireless Keyboard with Touchpad for Smart TVs with Touchpad for Smart TVs Model Number: K4N-US FCC ID: PRDKB46 Prepared for: Acrox Technologies Co., Ltd. 4F.,No.89,Minshan St., Neihu Dist., Taipei City 114,Taiwan,R.O.C Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2103025 Date of Test: Feb. 23~Mar. 03, 2021 Date of Report: Mar. 04, 2021 FCC ID: PRDKB46 EST Technology Co., Ltd Report No. ESTE-R2103025 Page 2 of 45 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 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 ..................................................................................................................................... 8 2.9. Test Equipment List ......................................................................................................................... 9 3. FIELD STRENGTH OF FUNDAMENTAL ............................................................................................ 10 3.1. Limit ............................................................................................................................................... 10 3.2. Test Setup ....................................................................................................................................... 10 3.3. Spectrum Analyzer Setting ............................................................................................................. 10 3.4. Test Procedure ................................................................................................................................ 11 3.5. Test Result ...................................................................................................................................... 12 4. RADIATED SPURIOUS EMISSIONS AND BAND EDGE ...................................................................... 19 4.1. Limit ............................................................................................................................................... 19 4.2. Test Setup ....................................................................................................................................... 21 4.3. Spectrum Analyzer Setting ............................................................................................................. 22 4.4. Test Procedure ................................................................................................................................ 23 4.5. Test Result ...................................................................................................................................... 24 5. 20DB BANDWIDTH ........................................................................................................................ 36 5.1. Limit ............................................................................................................................................... 36 5.2. Test Setup ....................................................................................................................................... 36 5.3. Spectrum Analyzer Setting ............................................................................................................. 36 5.4. Test Procedure ................................................................................................................................ 36 5.5. Test Condition ................................................................................................................................ 36 5.6. Test Result ...................................................................................................................................... 37 6. ANTENNA REQUIREMENTS ............................................................................................................ 39 6.1. Limit ............................................................................................................................................... 39 6.2. Test Result ........................................................…

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1.TESTSETUPPHOTO RadiatedTest(Below1GHz) RadiatedTest(Above1GHz)