Feature:100% brand new and high quality.Quantity: 1Can talk， listening to musicBuilt-in DSP audio processing system， can be a very good eliminate Noise and echo， to ensure clear communication， and music.2 in a row， to the telegraph， voice prompt operation.Small and light， stealth design.Specification: Bluetooth version:V4.0Bluetooth profiles: Hands free / HeadsetRadio frequency:2.4GHzMulti-point connections can be connected to two one with two Bluetooth devices simultaneouslyTransmission range:10 mDimensions:2.5cmX1.7cmX1.2cmPackage: 1 X super mini stereo Bluetooth Headset 1 X USB charger cable 1 X instruction manual