2AVRVCRTB70017inch tablet

FCC Caution 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

DPAUDIOVIDEOLLC Date:2020-08-24 To:FederalCommunicationsCommission FCCID:2AVRVCRTB7001 ToWhomItMayConcern: ThisletteristoascertainthatDPAUDIOVIDEOLLC MODELNo.:CRTB7001 CRTB7001BL,CRTB7001BU,CRTB7001PR,CRTB7001TL,CRTB7001PN, CRTB7001RD HasbeentheunitsusedforconductingFCCcompliancetesting,theSDoCpartwill betestedbyShenzhenBCTCTestingCo.,Ltd. Ifyouhaveanyquestionorconcerns,pls.contactus. Sincerely, Client’ssignature： Client’sname/title：RoyRyan(Manager) Contactinformation/address:DPAUDIOVIDEOLLC

Rev11/20/07 (DPAUDIOVIDEOLLC) FederalCommunicationsCommission AuthorizationandEvaluationDivision ConfidentialityRequestregardingapplicationforcertificationofFCCID: 2AVRVCRTB7001 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestconfidential treatmentofinformationaccompanyingthisapplicationasoutlinedbelow: ExhibitTypeFileName BlockDiagram, Schematics, OperationalDescription BlockDiagram Schematics OperationalDescription Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedto thepublic.Thepublicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovide unjustifiedbenefitstoitscompetitors. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthis applicationandallaccompanyingdocumentationwillnotbemadebeforethedateoftheGrant forthisapplication. Sincerely, (RoyRyan)

DPAUDIOVIDEOLLC ModelDifference 2020-08-24 EUTNAME:7inchtablet FCCID:FCC:2AVRVCRTB7001 MODEL:CRTB7001 CRTB7001BL,CRTB7001BU,CRTB7001PR,CRTB7001TL,CRTB7001PN, CRTB7001RD AllthemodelarethesamecircuitandRFmodule,exceptmodelnames. Regards Sincerely Client’ssignature Client’sname/title:RoyRyan(Manager) Contactinformation/address:920MalcolmAveLosAngeles,California,United States90024

(DPAUDIOVIDEOLLC) FederalCommunicationsCommission AuthorizationandEvaluationDivision 1435OaklandMillsRoad Columbia,MD21046 Date:2020.8.24 SUBJECT:FCCApplicationforFCCID:2AVRVCRTB7001 ToWhomItMayConcern: We,theundersigned,herebyauthorizeAlanMeiatShenzhenBCTCTestingCo.,Ltd. onourbehalf,toapplytotheFederalCommunicationsCommissiononourequipment. AnyandallactscarriedoutbyAlanMeiofShenzhenBCTCTestingCo.,Ltd.onour behalfshallhavethesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct.We,the applicant,arenotsubjecttoadenialoffederalbenefitspursuanttoSection5301ofthe Anti-DrugActof1988,21USC853a,andnopartytotheapplicationissubjecttoadenial offederalbenefitspursuanttothatsection. Regards, (RoyRyan)

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RFEXPOSUREEVALUATIONMETHOD FCCID:2AVRVCRTB7001 SARTestExclusionThresholdsfor100MHz – 6GHzand ≤ 50mm ApproximateSARTestExclusionPowerThresholdsatSelectedFrequenciesandTestSeparation DistancesareillustratedinthefollowingTable. The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances ≤ 50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)] · [ √ f(GHz)] ≤ 3.0for1-gSARand ≤ 7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis ≤ 50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtest exclusion. BT-EDR maxpossibleoutputpower(PK,conducted)：6±1dbm 2.37dBilogarithmictermsconverttonumericresultisnearly1.726 7dBm=5.01mW 2402MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=5.01/5*√2.402=1.55≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. Modulation Frequency (MHz) OutputPower (dBm) MaxAntenna Gain(dBi) GFSK 2402 1.30 2.37 GFSK 2441 2.82 2.37 GFSK 2480 3.48 2.37 Pi/4DQPSK 2402 2.78 2.37 Pi/4DQPSK 2441 4.25 2.37 Pi/4DQPSK 2480 4.92 2.37 8DPSK 2402 3.03 2.37 8DPSK 2441 4.50 2.37 8DPSK 2480 5.15 2.37 2441MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=5.01/5*√2.441=1.57≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. 2480MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=5.01/5*√2.48=1.58≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. WIFI Frequency MaximumConductedOutput Power(PK) LIMIT (MHz)(dBm)dBm 802.11b 24128.83 30 24378.60 30 24628.52 30 802.11g 24127.61 30 24377.62 30 24628.46 30 802.11n20 24127.23 30 24377.71 30 24627.93 30 802.11n40 24226.42 30 24376.48 30 24526.55 30 maxpossibleoutputpower(PK,conducted)：8±1dbm 2.37dBilogarithmictermsconverttonumericresultisnearly1.726 9dbm=7.94mW 2412MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=7.94/5*√2.412=2.47≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. 2437MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=7.94/5*√2.437=2.48≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. 2462MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=7.94/5*√2.462=2.49≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. Conclusion:NoSARisrequired.

Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2007000957-2E Test Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-007 Ver.：A.0 Page 1 of 65 FCC Part 15C Test Report FCC ID: 2AVRVCRTB7001 Product Name: 7inch tablet Trademark: Core Innovations Model Name : CRTB7001 CRTB7001 BL, CRTB7001 BU, CRTB7001 PR, CRTB7001 TL, CRTB7001 PN, CRTB7001 RD Prepared For : DP AUDIO VIDEO LLC Address : 920 Malcolm Ave Los Angeles, California, United States 90024 Prepared By : Shenzhen BCTC Testing Co., Ltd. Address : BCTC Building & 1-2F, East of B Building, Pengzhou Industrial, Fuyuan 1st Road, Qiaotou Community, Fuyong Street, Bao’an District, Shenzhen, China Test Date: Aug. 03, 2020 – Aug. 10, 2020 Date of Report : Aug. 10, 2020 Report No.: BCTC2007000957-2E Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2007000957-2E Test Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-007 Ver.：A.0 Page 2 of 65 TEST RESULT CERTIFICATION Applicant’s name ................. : DP AUDIO VIDEO LLC Address .................................. : 920 Malcolm Ave Los Angeles, California, United States 90024 Manufacture's Name ............ : DP AUDIO VIDEO LLC Address .................................. : 920 Malcolm Ave Los Angeles, California, United States 90024 Product description Product name ............................ : 7inch tablet Trademark .................................. : Core Innovations Model and/or type reference : CRTB7001 CRTB7001BL, CRTB7001BU, CRTB7001PR, CRTB7001TL, CRTB7001PN, CRTB7001RD Standards .............................. : FCC Part15.247 ANSI C63.10:2013 KDB 558074 This device described above has been tested by BCTC, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of BCTC, this document may be altered or revised by BCTC, personal only, and shall be noted in the revision of the document. Prepared by(Engineer): Kelsey Tan Reviewer(Supervisor): Eric Yang Approved(Manager): Zero Zhou Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2007000957-2E Test Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-007 Ver.：A.0 Page 3 of 65 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 5 1.1 TEST FACILITY 6 1.2 MEASUREMENT UNCERTAINTY 6 2 . GENERAL INFORMATION 7 2.1 GENERAL DESCRIPTION OF EUT 7 2.2 DESCRIPTION OF TEST MODES 8 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 9 2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 9 2.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 10 3 . EMC EMISSION TEST 12 3.1 CONDUCTED EMISSION MEASUREMENT 12 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 12 3.1.2 TEST PROCEDURE 12 3.1.3 DEVIATION FROM TEST STANDARD 12 3.1.4 TEST SETUP 13 3.1.5 EUT OPERATING CONDITIONS 13 3.1.6 TEST RESULTS 14 3.2 RADIATED EMISSION MEASUREMENT 16 3.2.1 RADIATED EMISSION LIMITS 16 3.2.2 TEST PROCEDURE 17 3.2.3 DEVIATION FROM TEST STANDARD 17 3.2.4 TEST SETUP 17 3.2.5 EUT OPERATING CONDITIONS 18 3.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 19 3.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 20 3.2.8 TEST RESULTS (1GHZ~25GHZ) 22 3.3 RADIATED BAND EMISSION MEASUREMENT 26 3.3.1 TEST REQUIREMENT: 26 3.3.2 TEST PROCEDURE 26 3.3.3 DEVIATION FROM TEST STANDARD 27 3.3.4 TEST SETUP 27 3.3.5 EUT OPERATING CONDITIONS 27 4 . POWER SPECTRAL DENSITY TEST 29 4.1 APPLIED PROCEDURES / LIMIT 29 4.1.1 TEST PROCEDURE 29 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2007000957-2E Test Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-007 Ver.：A.0 Page 4 of 65 Table of Contents Page 4.1.2 DEVIATION FROM STANDARD 29 4.1.3 TEST SETUP 29 4.1.4 EUT OPERATION CONDITIONS 29 4.1.5 TEST RESULTS 30 5 . BANDWIDTH TEST 38 5.1 APPLIED PROCEDURES / LIMIT 38 5.1.1 TEST PROCEDURE 38 5.1.2 DEVIATION FROM STANDARD 38 5.1.3 TEST SETUP 38 5.1.4 EUT OPERATION CONDITIONS 38 5.1.5 TEST RESULTS 39 6 . PEAK OUTPUT POWER TEST 47 6.1 APPLIED PROCEDURES/LIMIT 47 6.1.1 TEST PROCEDURE 47 6.1.2 DEVIATION FROM STANDARD 47 6.1.3 TEST SETUP 47 6.1.4 EUT OPERATION CONDITIONS 47 6.1.5 TEST RESULTS 48 7 . 100 KHZ BANDWIDTH OF FREQUENCY BAND EDGE 49 7.1 APPLICABLE STANDARD 49 7.2 TEST PROCEDURE 49 7.3 DEVIATION FROM STANDARD 49 7.4 TEST SETUP 49 7.5 EUT OPERATION CONDITIONS 49 7.6 TEST RESULTS 49 8 . DUTY CYCLE OF TEST SIGNAL 58 8.1 STANDARD REQUIREMENT 58 8.2 FORMULA: 58 9 . ANTENNA REQUIREMENT 61 9.1 STANDARD REQUIREMENT 61 9.2 EUT ANTENNA 61 10 . EUT TEST PHOTO 62 11 . EUT PHOTO 64 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2007000957-2E Test Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-007 Ver.：A.0 Page 5 of 65 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.247) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.247 (a)(2) 6dB Bandwidth PASS 15.247 (b) Peak Output Power PASS 15.247 (d) Radiated Spurious Emission PASS 15.247 (e) Power Spectral Density PASS 15.205 Restricted Band of Operation PASS 15.247 (d) Band Edge (Out of Band Emissions) PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2007000957-2E Test Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-007 Ver.：A.0 Page 6 of 65 1.1 TEST FACILITY Shenzhen BCTC Testing Co., Ltd. Add. : BCTC Building & 1-2F, East of B Building, Pengzhou Industrial, Fuyuan 1st Road, Qiaotou Community, Fuyong Street, Bao’an District, Shenzhen, China FCC Test Firm Registration Number: 712850 IC Registered No.: 23583 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 3m camber Radiated spurious emission(30MHz-1GHz) U=4.3dB 2 3m chamb…

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Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2007000957-1E Test Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-007 Ver.：A.0 Page 68 of 69 16. EUT TEST SETUP PHOTOGRAPHS Conducted Measurement Photos Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2007000957-1E Test Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-007 Ver.：A.0 Page 69 of 69 Radiated Measurement Photos ※※※※※※※※※※ END OF REPORT