2AU75-SHOWERSPbluetooth speaker

Specification： 1.On/OffButton 2.Play/PauseTrack 3.PreviousSong:ShortPressVolume(-):Longpress 4.NextSong:ShortPress:Volume(+):LongPress 5.Answer/EndCall Productdescription： Bluetooth5.0+EDR(2.4GHzTransmittingFrequency) Transferdistance:33ft(thedistancedependsonthebluetooth deviceandenvironment) Power:DC5V-100-120mA 0utput:3W 3.7V400mAhlithiumbattery 4hourchargingtimeviamicro-USB 2houroperatingtime IPx4gradewaterresistant FCCCaution： Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothe followingtwoconditions:(1)Thisdevicemaynotcauseharmfulinterference,and(2) thisdevicemustacceptanyinterferencereceived,includinginterferencethatmay causeundesiredoperation. AnyChangesormodificationsnotexpresslyapprovedbythepartyresponsiblefor compliancecouldvoidtheuser'sauthoritytooperatetheequipment. Note:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClass Bdigitaldevice,pursuanttopart15oftheFCCRules.Theselimitsaredesignedto providereasonableprotectionagainstharmfulinterferenceinaresidential installation.Thisequipmentgeneratesusesandcanradiateradiofrequencyenergy and,ifnotinstalledandusedinaccordancewiththeinstructions,maycauseharmful interferencetoradiocommunications.However,thereisnoguaranteethat interferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescause harmfulinterferencetoradioortelevisionreception,whichcanbedeterminedby turningtheequipmentoffandon,theuserisencouragedtotrytocorrectthe interferencebyoneormoreofthefollowingmeasures: -Reorientorrelocatethereceivingantenna. -Increasetheseparationbetweentheequipmentandreceiver. -Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhich thereceiverisconnected. -Consultthedealeroranexperiencedradio/TVtechnicianforhelp. ThedevicehasbeenevaluatedtomeetgeneralRFexposurerequirement.Thedevice canbeusedinportableexposureconditionwithoutrestriction.

ShenzhenAitaTechnologyCo.,Ltd. 2021.06.04 EurofinsElectricalandElectronicTestingNA,Inc. 914W.PatapscoAvenue Baltimore,MD21230 USA RE:CONFIDENTIALITYREQUESTFOR EUTNAME:bluetoothspeaker Trademark:N/A MODEL:LEDShowerSpeaker,ShowerSpeaker,BM-6D,RainbowSpeaker, BTS-06 FCCID:2AU75-SHOWERSP ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459 ofCFR47.Wehaverequestedthatthe -BlockDiagram -Schematics -OperationalDescription requiredtobesubmittedwiththisapplicationbepermanentlywithheldfrompublic review. Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarily releasedtothepublic.Thepublicdisclosureofthesematerialsmaybeharmfultothe applicantandprovideunjustifiedbenefitstoitscompetitors. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, Client’ssignature: Client’sname/title:HaizolChan/Manager Contactinformation/address:Floor1,2&4,No.114,EastXintangVillage,Dakang Community,HenggangStreet,LonggangDistrict,Shenzhen,China

ShenzhenAitaTechnologyCo.,Ltd. 2021.06.04 EurofinsElectricalandElectronicTestingNA,Inc. 914W.PatapscoAvenue Baltimore,MD21230 USA RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeShenzhenBCTCTestingCo.,Ltdtoactonourbehalfinall mattersrelatingtoapplicationforequipmentauthorization,includingthesigningofalldocuments relatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseAct of1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, Client’ssignature: Client’sname/title:HaizolChan/Manager Contactinformation/address:Floor1,2&4,No.114,EastXintangVillage,Dakang Community,HenggangStreet,LonggangDistrict,Shenzhen,China

ShenzhenAitaTechnologyCo.,Ltd. ModelDifference 2021-06-04 EUTNAME:bluetoothspeaker FCCID:2AU75-SHOWERSP MODEL:LEDShowerSpeaker,ShowerSpeaker,BM-6D,RainbowSpeaker, BTS-06 AllthemodelarethesamecircuitandRFmodule,onlyformodelnameandcolor. Regards Sincerely Client’ssignature: Client’sname/title:HaizolChan/Manager Contactinformation/address:Floor1,2&4,No.114,EastXintangVillage,Dakang Community,HenggangStreet,LonggangDistrict,Shenzhen,China

External Photos

Size:20*10mm bluetooth speaker FCC ID: 2AU75-SHOWERSP d Label location

Internal Photos Antenna

RFEXPOSUREEVALUATIONMETHOD FCCID:2AU75-SHOWERSP AccordingtoKDB447498D01V06 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 ModulationTestChannelOutputPower(dBm)Limit(dBm) GFSKLow3.53121 GFSK Middle2.74721 GFSK High1.78121 Pi/4DQPSK Low4.15821 Pi/4DQPSK Middle3.44821 Pi/4DQPSK High2.48421 8DPSKLow4.63021 8DPSKMiddle3.95121 8DPSKHigh3.05421 maxpossibleoutputpower(PK,conducted)：4±1dBm 1.3dBilogarithmictermsconverttonumericresultisnearly1.349 5dBm=3.16mW 2402MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=3.16/5*√2.402=0.98≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. 2441MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=3.16/5*√2.441=0.99≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. 2480MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=3.16/5*√2.48=1.00≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. Conclusion:NoSARisrequired.

No.：BCTC/RF-EMC-005 Page 1 of 70 Edition：A.3 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2105615068E Applicant: Shenzhen Aita Technology Co., Ltd. Product Name: bluetooth speaker Model/Type Ref.: LED Shower Speaker Tested Date: 2021-05-24 to 2021-05-28 Issued Date: 2021-05-28 Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 2 of 70 Edition：A.3 FCC ID : 2AU75-SHOWERSP The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: bluetooth speaker Trademark: N/A Model/Type Ref.: LED Shower Speaker Shower Speaker, BM-6D, Rainbow Speaker, BTS-06 Prepared For: Shenzhen Aita Technology Co., Ltd. Address: Floor1, 2 &4, No. 114, East Xintang Village, Dakang Community, Henggang Street, Longgang District , Shenzhen, China Manufacturer: Shenzhen Aita Technology Co., Ltd. Address: Floor1, 2 &4, No. 114, East Xintang Village, Dakang Community, Henggang Street, Longgang District , Shenzhen, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Tangwei, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2021-05-24 Sample tested Date: 2021-05-24 to 2021-05-28 Issue Date: 2021-05-28 Report No.: BCTC2105615068E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is Bluetooth Classic radio test report. Tested by: Approved by: Lei Chen/Project Handler Zero Zhou/Reviewer Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 3 of 70 Edition：A.3 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ............................................................ 5 2. TEST SUMMARY ..................................................... 6 3. MEASUREMENT UNCERTAINTY ....................................... 7 4. PRODUCT INFORMATION AND TEST SETUP............................ 8 4.1 Product Information ..................................................... 8 4.2 Test Setup Configuration ................................................ 9 4.3 Support Equipment ..................................................... 9 4.4 Channel List .......................................................... 10 4.5 Test Mode ............................................................ 10 4.6 table of parameters of text software setting ................................ 11 5. TEST FACILITY AND TEST INSTRUMENT USED ........................ 12 5.1 Test Facility ........................................................... 12 5.2 Test Instrument Used .................................................. 12 6. CONDUCTED EMISSIONS ............................................ 14 6.1 Block Diagram Of Test Setup ............................................ 14 6.2 Limit ................................................................. 14 6.3 Test procedure ........................................................ 14 6.4 EUT operating Conditions ............................................... 15 6.5 Test Result ........................................................... 16 7. RADIATED EMISSIONS .............................................. 18 7.1 Block Diagram Of Test Setup ............................................ 18 7.2 Limit ................................................................. 19 7.3 Test procedure ........................................................ 20 7.4 EUT operating Conditions ............................................... 21 7.5 Test Result ........................................................... 22 8. RADIATED BAND EMISSION MEASUREMENT AND RESTRICTED BANDS OF OPERATION .................................................. 26 8.1 Block Diagram Of Test Setup ............................................ 26 8.2 Limit ................................................................. 26 8.3 Test procedure ........................................................ 27 8.4 EUT operating Conditions ............................................... 27 8.5 Test Result ........................................................... 28 9. CONDUCTED EMISSION ............................................. 29 9.1 Block Diagram Of Test Setup ............................................ 29 9.2 Limit ................................................................. 29 9.3 Test procedure ........................................................ 29 9.4 Test Result ........................................................... 30 10. 20 DB BANDWIDTH .................................................. 39 10.1 Block Diagram Of Test Setup .......................................... 39 Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 4 of 70 Edition：A.3 10.2 Limit ................................................................ 39 10.3 Test procedure ....................................................... 39 10.4 Test Result .......................................................... 40 11. MAXIMUM PEAK OUTPUT POWER .................................... 45 11.1 Block Diagram Of Test Setup .......................................... 45 11.2 Limit ................................................................ 45 11.3 Test procedure ....................................................... 45 11.4 Test Result .......................................................... 46 12. HOPPING CHANNEL SEPARATION ................................... 51 12.1 Block Diagram Of Test Setup .......................................... 51 12.2 Limit ................................................................ 51 12.3 Test procedure ....................................................... 51 12.4 Test Result .......................................................... 52 13. NUMBER OF HOPPING FREQUENCY .................................. 57 13.1 Block Diagram O…

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Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 41 of 70 Edition：A.3 GFSK Middle Channel GFSK High Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 42 of 70 Edition：A.3 Pi/4 DQPSK Low Channel Pi/4 DQPSK Middle Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 43 of 70 Edition：A.3 Pi/4 DQPSK High Channel 8DPSK Low Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 44 of 70 Edition：A.3 8DPSK Middle Channel 8DPSK High Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 45 of 70 Edition：A.3 11. MAXIMUM PEAK OUTPUT POWER 11.1 Block Diagram Of Test Setup 11.2 Limit FCC Part15 (15.247), Subpart C Section Test Item Limit Frequency Range (MHz) Result 15.247(b)(1) Peak Output Power 0.125 watt or 21dBm 2400-2483.5 PASS 11.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set the spectrum analyzer: RBW = 3MHz. VBW = 3MHz. Sweep = auto; Detector Function = Peak. 3. Keep the EUT in transmitting at lowest, medium and highest channel individually. Record the max value. Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 46 of 70 Edition：A.3 11 .4 Test Result Temperature： 26°C Relative Humidity： 54% Test Voltage ： DC 3.7V Remark: N/A Modulation Test Channel Output Power (dBm) Limit (dBm) GFSK Low 3.531 21 GFSK Middle 2.747 21 GFSK High 1.781 21 Pi/4 DQPSK Low 4.158 21 Pi/4 DQPSK Middle 3.448 21 Pi/4 DQPSK High 2.484 21 8DPSK Low 4.630 21 8DPSK Middle 3.951 21 8DPSK High 3.054 21 Test plots GFSK Low Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 47 of 70 Edition：A.3 GFSK Middle Channel GFSK High Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 48 of 70 Edition：A.3 Pi/4 DQPSK Low Channel Pi/4 DQPSK Middle Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 49 of 70 Edition：A.3 Pi/4 DQPSK High Channel 8DPSK Low Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 50 of 70 Edition：A.3 8DPSK Middle Channel 8DPSK High Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 51 of 70 Edition：A.3 12. HOPPING CHANNEL SEPARATION 12.1 Block Diagram Of Test Setup 12.2 Limit Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hopping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400-2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 0.125W. 12.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set the spectrum analyzer: RBW = 30kHz. VBW = 100kHz , Span = 2.0MHz. Sweep = auto; Detector Function = Peak. Trace = Max hold. 3. Allow the trace to stabilize. Use the marker-delta function to determine the separation between the peaks of the adjacent channels. The limit is specified in one of the subparagraphs of this Section Submit this plot. Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 52 of 70 Edition：A.3 12.4 Test Result Modulation Test Channel Separation (MHz) Limit(MHz) Result GFSK Low 1.002 0.618 PASS GFSK Middle 1.008 0.620 PASS GFSK High 1.000 0.620 PASS Pi/4 DQPSK Low 1.006 0.835 PASS Pi/4 DQPSK Middle 1.000 0.827 PASS Pi/4 DQPSK High 1.006 0.830 PASS 8DPSK Low 1.000 0.810 PASS 8DPSK Middle 0.998 0.809 PASS 8DPSK High 1.002 0.809 PASS Test plots GFSK Low Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 53 of 70 Edition：A.3 GFSK Middle Channel GFSK High Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 54 of 70 Edition：A.3 Pi/4 DQPSK Low Channel Pi/4 DQPSK Middle Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 55 of 70 Edition：A.3 Pi/4 DQPSK High Channel 8DPSK Low Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 56 of 70 Edition：A.3 8DPSK Middle Channel 8DPSK High Channel Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 57 of 70 Edition：A.3 13. NUMBER OF HOPPING FREQUENCY 13.1 Block Diagram Of Test Setup 13.2 Limit Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. 13.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set the spectrum analyzer: RBW = 100kHz. VBW = 300kHz. Sweep = auto; Detector Function = Peak. Trace = Max hold. 3. Allow the trace to stabilize. It may prove necessary to break the span up to sections. in order to clearly show all of the hopping frequencies. The limit is specified in one of the subparagraphs of this Section. 4. Set the spectrum analyzer: Start Frequency = 2.4GHz, Stop Frequency = 2.4835GHz. Sweep=auto; Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 58 of 70 Edition：A.3 13.4 Test Result Test Plots: 79 Channels in total GFSK Pi/4 DQPSK Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 59 of 70 Edition：A.3 8DPSK Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 60 of 70 Edition：A.3 14. DWELL TIME 14.1 Block Diagram Of Test Setup 14.2 Limit Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. The average time of occupancy on any channel shall not be greater than 0.4 seconds within a period of 0.4 seconds multiplied by the number of hopping channels employed. Frequency hopping systems may avoid or suppress transmissions on a particular hopping frequency provided that a minimum of 15 channels are used. 14.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set spectrum analyzer span = 0. Centred on a hopping channel; 3. Set RBW = 1MHz and VBW = 3MHz.Sweep = as necessary to capture the entire dwell time per hopping channel. Set the EUT for DH5, DH3 and DH1 packet transmitting. 4. Use the marker-delta function to determine the dwell time. If this value varies…

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Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 67 of 70 Edition：A.3 16. EUT PHOTOGRAPHS EUT Photo 1 EUT Photo 2 Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 68 of 70 Edition：A.3 17. EUT TEST SETUP PHOTOGRAPHS Conducted emissions Radiated Measurement Photos Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 69 of 70 Edition：A.3 Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 70 of 70 Edition：A.3 STATEMENT 1.The equipment lists are traceable to the national reference standards. 2.The test report can not be partially copied unless prior written approval is issued from our lab. 3.The test report is invalid without stamp of laboratory. 4.The test report is invalid without signature of person(s) testing and authorizing. 5.The test process and test result is only related to the Unit Under Test. 6.The quality system of our laboratory is in accordance with ISO/IEC17025. 7.If there is any objection to report, the client should inform issuing laboratory within 15 days from the date of receiving test report. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Tangwei, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China TEL：400-788-9558 P. C.: 518103 FAX：0755-33229357 Website：http://www.chnbctc.com E-Mail：[email protected] ※※※※※ END ※※※※※

Report No.: BCTC2105615068E No.：BCTC/RF-EMC-005 Page 68 of 70 Edition：A.3 17. EUT TEST SETUP PHOTOGRAPHS Conducted emissions Radiated Measurement Photos