Can 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:V4.1Bluetooth profiles: Hands

Can 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:V4.1Bluetooth profiles: Hands free / HeadsetRadio frequency:2.4GHzMulti-point connections can be connected to two one with two Bluetooth devices simultaneouslyTransmission range:10 mDimensions:2.5cmX1.7cmX1.2cmSupport The Switch In Both Chinese And English, Chinese, English, Free Conversion, Boot Alternating Red And Blue Lights, Press The Answer Key For 2 Seconds, Heard The Voice Prompt, Conversion Of SuccessPackage Content:1X Earphone1X USB cable