NAD Electronics VISO 1 Wireless Digital Music System with Bluetooth for iPod with 30-pin Connector (White) Made for iPod Music System with a Bluetooth aptX wireless high fidelity receiver that works with any NAD Direct Digital DAC/Amplifier - 35 bit/844kHz, 0.005% THD - eliminates all analog circuitry and o Optical digital input accepts up to 24/96k music from external devices like TV, Disc Player or Media Bi-amplified system with digital crossover and bi-amplification for lowest distortion and widest fre Music from iPod reamins in digital domain, bypassing all analog circuitry