New Beyution@ Stereo Bluetooth 4.0 headphones- Best Audio HiFi Performance!- Retail Package Bluetooth 4.0 and A2DP technology Stereo Earbuds, Enjoy your Music Tangle Free In-Line Microphone and Controls for Music,Volume skip tracks and adjust volume Built-in microphone, answer phone calls easy, Digital noise reduction for call clarity Enjoy an immersive audio experience with crystal clear audio and rich bass Easily pair with Bluetooth supported mobile phones, tablets and computers