Latest version 5.0 of Bluetooth wireless communication standard, No audio lag/latency, Noise cancelling, improved speed & range, dual audio and backwards compatible 3.5mm male to male connector to get rid of the wire bonds, but without compromising sound quality. Only you and music, pure and simple. CVC8.0 NOISE CANCELLING: Built-in microphone with CVC8.0 noise suppression tech and DSP chip providing both clear listening and authentic voice transmitted. Hands free feature makes calls super simple when driving. Enjoy wireless stereo music and no more worry about missing any calls. Make easily your TV / projector Bluetooth-enabled by using the transmitter (Tx) mode via the 3.5mm audio jack