Best Selling MP3 Bluetooth Headphone, Computer Headset Feature Support TF Card

Specifications 1.stereo Bluetooth v3.0 2.Smart connection; 3.Rechargeable battery system; 4..Built-in Mic Sports MP3 Player with TF card slot -Headset Handsfree Headphones   TF card support,bluetooth built-in, mp3, headphone, telephone, EQ Specification( bluetooth part) Bluetooth Headphone with TF card MP3 player1. stereo Bluetooth v3.02. with tf card mp3 player3. high quality stereo bass sound4. Built-in rechargeable Li-ion battery5. accessory: USB cable, audio cable Specification(mp3 part)Audio format support: MP3/WMA/WAVExternal memory enlarge: TF card( Max 8G)Play time: continue about 10 hoursUSB Jack: USB 2.0Frequency response: 20Hz~20kHzOutput power: 15mW*15mWRecord sampling rate: 64Kbps/8KHzRecord format: WAV   Hardware specification definitionSolution Transmit powerClass 2, Max4 dBmReception sensitivity-88dbm(typical)Working Band2.4G ISM Band,2.402-2.480GHzModulation systemGFSK,π/4 DQPSK,8DPSKHardware versionCAM-BSK10-C5R3-V3KeyMulti-function button,VOL+,VOL-,Toggle switchFast forward button,Rewind buttonLEDRed LEDBlue LEDSoftware memory64K EPROMAntennaBuilt-in antennaKey life 50000 times aboveOperating temperature0 - +45 °CStorage temperature-20 - 45 °CCSR 8645   Sofeware specification definitionHFP AG ProfileV1.5A2DP SRC ProfileV1.2AVRCP Targe ProfileV1.0Software version(Standard Edition)   Merchanical operation definitionMulti-function button(MFB)Pressure force 250gf±80gf ; Route 0.2mm±0.1mmKey life50,000 times above      Electrical Characteristics Electrical specifications:MinmunTypicalMaxmumUnitsUSB input voltage range55.56.0VMinimum current requirements of the USB power supply200  mARF CharacteristicsFrequency range2.402 2.483GHZTransmit power0 4dBmCarrier frequency offset-40 40KHZCommunication distance(forward) 10 MeterCommunication distance(reverse) 8 MeterReception sensitivity,( 0.1% BER )(Bluetooth standard ≤-70dBm)-80-85-88dBmReceived signal strength in the 0.1% BER (Bluetooth standard≥-20dBm)    Environmental Suitability TypeMinmum MaxmumUnitOperating temperature range0 50°CStorage temperature range-20 50°CWorking enviroment humidity range15 80%Storage enviroment temperature range15 85%