Latest Bluetooth Version 4.0, 33 ft range,CVC 6.0 Noise Cancelling TechnologyEcho cancellation and noise suppression | Provide clearer speakerphone quality | Built-in high performance stereo audio codec,aptX streaming music,supports pairing two smarts devices at NFC pairing with NFC enabled smartphones | Support AVRCP technology for easy-to-use music controls | Music player controls - Play, Pause, Previous song, Next song, Answer and reject calls, private call is available.