NAD VISO HP70 Wireless Active Noise Cancelling HeadphonesIncredible PerformanceDon’t get tied down with wires. The NAD HP70 headphone offers all the details of a live musical performance and are enhanced with Bluetooth®aptX™ HD technology so you can enjoy CD-quality sound, no matter where you listen. Infused with Active Noise Cancelling and RoomFeel™, an innovative technology that delivers the full range sound of a high performance loudspeaker inside of a room, the NAD HP70 instantly transports you inside a soundstage that is more expansive and