MP3

Technical Parameter and specificationPC Interface Supported: USB 2.0Music formats supported: MP3 WMA OGGSD Card Support: 128MB-32GBOperating systemWindows 98/SE/ME/2K/XPVista MAC OS 9.2and overOperating Carrent:≤30mAOperating Voltage:3.3vHeadset Size:90mm(L)×90mm(W)×46mm(H)

HEADPHONESpeciFicaTionType:Stereo Headphone With MicSpeaker:Φ27mmSensitivity:115dB S.P.L at 1KHzImpedance:32ΩFrequency Response:20Hz-20.000HzRated Power:20mWPower Capability:100mWCable Length:1.72mMicrophone Unit:4.5×2mm -58dB±3dBPlug Type:Φ2.5mm stereo

BluetoothSpecificationBluetooth version: Bluetooth V2.0Transmitted power: class 4Receive sensitivity:-85dBContinuous talking time: about 8 hoursStandby time: about 80 hoursOperation range: within 10 metersOperation voltage:≥3.5VOperation current:≤25mAStandby current: ≤2mABluetooth frequency response:24GHZ

power supply:

rechargeable by lithium battery 

Function:

read SD CARD Play music by SD card

with bluetooth function

with Audio splitter

with FM fuction