Sony MDRZX770BN Bluetooth and Noise Canceling Headset (Black) Convenient 4-way usage w/Bluetooth & noise cancelling, Bluetooth audio streaming with AAC and aptX support, Convenient One-touch pairing with NFC, Digital Noise Canceling reduces ambient noise.Connectivity Technology: Wireless Built-in microphone for hands-free phone calling, Rechargeable battery for up to 13hrs music, Passive mode for normal operation without battery usage 40mm drivers deliver rich, full sound, Beat Response Control for tight bass/transient response, Comfortable swiveling, around the ear design, Pouch, USB charging cable, and audio cable included