NAD VISO 1 AP AirPlay Music System - Black Complete digital system that offers Wi-Fi network capability and supports Apple AirPlay NAD Direct Digital DAC/Amplifier Bluetooth aptX wireless high fidelity receiver works with any Bluetooth device Optical digital input accepts up to 24/96k music from external devices like TV, Disc Player or Media Acoustic design refined and tweaked by Paul Barton of PSB for high-end sound