Bluetooth audio streaming with AAC and aptX support?? Convenient One-touch pairing with NFC?? Built-in microphone for hands-free phone calling^Rechargeable battery for up to 17hrs music playback?? 40mm drivers for wide frequency response?? Beat Response Control for tight bass/transient response^Comfortable?? swiveling?? around the ear design?? USB charging cable supplied?? Available in Blue or Black</br></br>Product Description</br></br>Have it all: superb sound and long-term comfort?? with wireless freedom. Easily pair devices for audio streaming and convenient hands-free calling via Bluetooth with Near Field Communications (NFC) technology. Envelope yourself in rich?? balanced sound and tight beats with 40mm drivers and Beat Response Control.</br><br/>http://www.amazon.com/gp/product/B00TA4HRMQ