YB2-C105CD PLAYER

English CD Player User Manual MODEL: C105 Dear Users: We appreciate you choosing the HOTT CD Player and wish you an excellent user experience. Please read this manual in detail and keep it on hand for further reference. C105 Product Design Accessories CD player Operation manual power cable Audio cable Earphone Start Step Tip: ※ When the HOLD button is in ON position, all functionality buttons are locked. When the HOLD button is in OFF position, CD Player can be used normally. ※ The screen will turn off after 30 seconds of inactivity as a screen saver function. Press any button to reactivate. ※ Please do not use discs with severe scratches, fingerprints, or dirt. It might cause failure to read and CD Player itself, or affect the service life of laser head. Introduction of touch button 1. : ON/OFF Hold 3 seconds to turn on Hold 3 seconds to turn off 2. : Pause/Play Press to pause and resume 3. : Previous track/Rewind Press one time to replay the current track Press twice to find the previous Hold to rewind 4. : Next Track/Fast Forward Press to find the next track Hold to fast forward 5. ：Sound effect mode Press EQ to switch sound effect mode EQ mode: BASS→ POP→ JAZZ→ ROCK→ CLASSIC 6. ：Play mode Press Ｍ to switch play mode Bluetooth Function Introduction Before connecting with Bluetooth, please turn on the Bluetooth device that needs to be connected, and turn off other devices that do not need to be connected to avoid interferences; In some cases some products may not be able to pair with this CD Player due to Bluetooth compatibility difference, please use the Audio Cable in the product accessories to connect. When a car stereo is not connecting, you can choose to use the FM transmitter to connect; When connecting a Bluetooth device, please unplug the headset, Bluetooth and headset cannot output audio at the same time; FM radio and Bluetooth cannot be used at the same time. 1. Bluetooth speaker/headset Connection: 1) When CD Player is on, holdto turn on Bluetooth; 2) When is flickering, the devise is ready to connect; 3) Turn on the Bluetooth speaker/headset to enter pairing mode; 4) Once connected, will stop flickering, The connection processmay take 20s~60s. 2. Car Bluetooth connection: 1) When CD Player is on, hold to turn on Bluetooth; 1 Single track play ALL All tracks play in order Shuffle play 2) When is flickering, the devise is ready to connect; 3）Turn on car Bluetooth, find the devise“HOTT-CD” and match the connection automatically，Some car Bluetooth requires a PN code(which is initially 000000 and can be changed later); 4）Once connected, will stop flickering. 3.Exit Bluetooth mode： Hold until the icon disappear. FM transmitter mode introduction The FM mode is only suitable for cars with FM function; CD Player supports 5 fixed frequency points：F87:5、F88:1、F89:1、F90:5、F95:5; FM and Bluetooth cannot be used at the same time. 1. Car FM Connection： 1) When CD Player is on, hold to turn on FM connection; 2) Hold to switch frequency point： F87:5、F88:1、F89:1、F90:5、F95:5; 3) Adjust the frequency of car tuner to the same frequency of the CD Player for connection; For example：adjust the frequency of both car equipment and CD Player to F90:5MHz and play music. 4) Press to Pause/Play, press to replay the current track, press twice to find the previous 播放状态 track, Press to find the next track. (Only supports track switching or pause and play on the CD Player itself, not on receiving device.) 2.Exit FM mode： When FM mode is on, hold to end FM connection mode. Back of product HOLD (ON/ OFF): Lock button switch - ON: All buttons will be locked - OFF: Unlock Note: Before power on, you need to put the button to the “OFF” position. VOL -/VOL+: Adjust the volume PHONES: Earphone jack USB 5V: USB power supply RESET: Reset / shutdown Charging ※ Attention： The power adaptor for the equipment：the voltage and power should be 5V-1A by USB. An adaptor over 9V will damage the equipment. 1. When is visible, the charge is low and a power source is needed for further use. 2. Adaptor with 5V - 1A is required. The USB provided works for charging. The light turns red when charging. The light turns blue when the charge is completed（after 4~5 hours). Parameters Power USB 5V-1A Supported CD type CD, MP3, CD-R, CD-RW Supported music format CD-DA, MP3, WMA Lithium battery 3.7V 1800mAh Charging length 4-5 hours Play length 8-10 hours Distance of Bluetooth 10meters Size ∮142X30.5mm Common trouble shooting solutions Trouble Possible reason Solution Failure to turn on Check if the HOLD is switched to ON Switch HOLD to OFF for unlocking The equipment is low on power Use the USB we provided to recharge （the adaptor with the voltage and power of 5V1A) Failure in recognizing the discs Check if the CD is seriously scraped, scratched, or otherwise damaged Change the disc Check if the format is compatible with the equipment Change to a CD that is compatible with the equipment Low volume Check if the earphones are properly connected Plug in earphones or change to other earphones Check the volume level Adjust if needed by pressing VOL+ Failure to charge Check that the USB interface and USB cable are in good condition Change to other USB cable Failure in connection with Bluetooth Check to ensure that all equipment is available for pairing Both equipment need to be available for pairing Distance exceeds the effective distance of Bluetooth connection Get closer and reconnect FM connection is weak or fails. Check if the car equipment is set to the same frequency with the CD Player Change to same frequency and try again There are distractors around Switch direction Buttons are not functional Check if the button HOLD is switched to ON Switch HOLD to OFF for unlocking Stops or automatically turns off when playing Check if the play mode is ALL tracks play in order The CD Player will turn off automatically once the list is completed Tracks get skipped when play Check if the discs are dirty or damaged Change the disc Failure to turn off Chec…

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HONGTIANTAI(H.K.)CO.,LIMITED AgentAuthorization Company:HONGTIANTAI(H.K.)CO.,LIMITED Address:2102PakpoleeCommercialCentre1ASaiYeungChoiStreetSouth MonqkokKowloonHongKongSar,HONGKONG,China ProductName:CDPLAYER ModelNumber(s):C105,HC033 ProductDescription:CDPLAYER WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2022.02.17 Name:WenjinFan Title:Manager Company:HONGTIANTAI(H.K.)CO.,LIMITED

HONGTIANTAI(H.K.)CO.,LIMITED Familymodelsdifferencedeclaration ProductName:CDPLAYER ModelName:C105,HC033 Differencedeclaration: AllthemodelarethesamecircuitandRFmodule,exceptthemodelname. Regards, Signature Name:WenjinFanDate:2022-02-17

HONGTIANTAI(H.K.)CO.,LIMITED OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2022/02/17 Subject;RequestforConfidentiality FCCID:YB2-C105 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription SOFTWARESECURITYREQUIREMENTSFORU-NIIDEVICES Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: HONGTIANTAI(H.K.)CO.,LIMITED Name:WenjinFan Title:Manager Email:[email protected]

HONGTIANTAI(H.K.)CO.,LIMITED Date:Feb17,2022 FCCID:YB2-C105 ModelNumber:C105,HC033 To: FederalCommunicationCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21048 ToWhomItMayConcern, We,HONGTIANTAI(H.K.)CO.,LIMITEDdeclarethatthisEUT (FCCID:YB2-C105)willconductFCCcompliancetesting,theSDOCpart recognizedtestlab(ShenzhenNTEKTestingTechnologyCo.,Ltd.(ShenZhen Lab.). 1/F,BuildingE,FendaSciencePark,SanweiCommunity,XixiangStreet Bao’anDistrict,Shenzhen518126P.R.China) Pleasecontactmeifyouhaveanyquestion. Sincerely, (Signed) Name/Title:WenjinFan/Manager Company:HONGTIANTAI(H.K.)CO.,LIMITED Address:2102PakpoleeCommercialCentre1ASaiYeungChoiStreetSouthMonqkokKowloonHong KongSar,HONGKONG,China

ATTACHMENT PHOTOGRAPHS OF EUT Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6 Photo 7

ATTACHMENT PHOTOGRAPHS OF EUT Photo 1 Photo 2 Photo 3 Photo 4 BT ANT Photo 5 Photo 6 Photo 7 FM TX ANT

FCC ID:YB2-C105 RF EXPOSURE EVALUATION According to FCC 1.1310: 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) MPE Calculation Method E (V/m) ＝ d GP**30 Power Density: Pd (W/m²) ＝ 377 2 E E ＝ Electric field (V/m) P ＝ Average RF output power (W) G ＝ EUT Antenna numeric gain (numeric) d ＝ Separation distance between radiator and human body (m) The formula can be changed to Pd ＝ 2 *377 **30 D GP From the EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained. conducted pow er Evaluation result Pow er density Limits (dBm)(mW)(dBi)Numeric 24024.484 5±163.9812.001.580.00131 24414.925 5±163.9812.001.580.00131 24805.843 5±163.9812.001.580.00131 24023.1853±14 2.5122.001.580.00081 24413.602 3±142.5122.001.580.00081 24803.574 3±142.5122.001.580.00081 24024.074 4±153.1622.001.580.00101 24414.096 4±153.1622.001.580.00101 24803.995 4±153.1622.001.580.00101 8-DPSK Channel Freq. (MHz) modulation Tune-up pow er (dBm) (dBm)(mW/cm2) Antenna Gain Max tune-up pow er π/4-DQPSK (mW/cm2 ) GFSK Measurement Result Operation Frequency: BT: 2402-2480MHz Power density limited: 1mW/ cm 2 Antenna Type: PCB antenna Antenna gain: 2dBi, R=20cm Conclusion: For the max result : 0.0013≤ 1.0 for Max Power Density, compliance RF exposure.. Signature: Date: 2022-02-17 NAME AND TITLE (Please print or type): Alex li/Manager COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen P.R. China.

Report No.: S21120804405001 Version.1.3 Page 1 of 83 RADIO TEST REPORT FCC ID: YB2-C105 Product: CD PLAYER Trade Mark: N/A Model No.: C105 Family Model: HC033 Report No.: S21120804405001 Issue Date: 15 Feb. 2022 Prepared for HONGTIANTAI(H.K.)CO.,LIMITED 2102Pakpolee Commercial Centre 1A Sai Yeung Choi Street South Monqkok Kowloon Hong Kong Sar, HONGKONG,China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China Tel. 400-800-6106, 0755-2320 0050, 0755-2320 0090 Website: http://www.ntek.org.cn Report No.: S21120804405001 Version.1.3 Page 2 of 83 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ...................................................................................................................... 3 2 SUMMARY OF TEST RESULTS ......................................................................................................................... 4 3 FACILITIES AND ACCREDITATIONS ............................................................................................................. 5 3.1 FACILITIES..................................................................................................................................................... 5 3.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 5 3.3 MEASUREMENT UNCERTAINTY ............................................................................................................... 5 4 GENERAL DESCRIPTION OF EUT .................................................................................................................. 6 5 DESCRIPTION OF TEST MODES ..................................................................................................................... 8 6 SETUP OF EQUIPMENT UNDER TEST ........................................................................................................... 9 6.1 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ....................................................................... 9 6.2 SUPPORT EQUIPMENT ............................................................................................................................... 10 6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS .............................................................................................. 11 7 TEST REQUIREMENTS .................................................................................................................................... 13 7.1 CONDUCTED EMISSIONS TEST ............................................................................................................... 13 7.2 RADIATED SPURIOUS EMISSION ............................................................................................................ 16 7.3 NUMBER OF HOPPING CHANNEL ........................................................................................................... 25 7.4 HOPPING CHANNEL SEPARATION MEASUREMENT ........................................................................... 26 7.5 AVERAGE TIME OF OCCUPANCY (DWELL TIME) ................................................................................ 27 7.6 20DB BANDWIDTH TEST .......................................................................................................................... 29 7.7 PEAK OUTPUT POWER .............................................................................................................................. 30 7.8 CONDUCTED BAND EDGE MEASUREMENT......................................................................................... 31 7.9 SPURIOUS RF CONDUCTED EMISSION .................................................................................................. 32 7.10 ANTENNA APPLICATION .......................................................................................................................... 33 7.11 FREQUENCY HOPPING SYSTEM (FHSS) EQUIPMENT REQUIREMENTS ......................................... 34 8 TEST RESULTS ................................................................................................................................................... 35 8.1 DWELL TIME ............................................................................................................................................... 35 8.2 MAXIMUM CONDUCTED OUTPUT POWER ........................................................................................... 40 8.3 OCCUPIED CHANNEL BANDWIDTH ....................................................................................................... 45 8.4 CARRIER FREQUENCIES SEPARATION .................................................................................................. 55 8.5 NUMBER OF HOPPING CHANNEL ........................................................................................................... 60 8.6 BAND EDGE ................................................................................................................................................. 61 8.7 CONDUCTED RF SPURIOUS EMISSION .................................................................................................. 74 Report No.: S21120804405001 Version.1.3 Page 3 of 83 1 TEST RESULT CERTIFICATION Applicant’s name ......................... : HONGTIANTAI(H.K.)CO.,LIMITED Address ....................................... : 2102Pakpolee Commercial Centre 1A Sai Yeung Choi Street South Monqkok Kowloon Hong Kong Sar, HONGKONG,China Manufacturer's Name .................. : HONGFUTAI E-TECH (SHENZHEN) CO., LIMITED Address ....................................... : 4F, No.17, Xinxing Industrial Park, Xinhe Community, Fuhai Street, Baoan District, Shenzhen 518103, China Product description Product name .............................. : CD PLAYER Model and/or type reference ..... : C105 Family Model ............................... : HC033 Measurement Procedure Used: APPLICABLE S…

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Radiated Measurement Photos Conducted Measurement Photos