The Dock Box S Digital provides a pure digital audio transmission from your iPod, iPad or iPhone to your audio system. An internal 24-bit/192kHz D/A convertor allows for highest fidelity direct analog signal interface. Additionally, a SPDIF digital output is provided to connect to external D/A converters as well as surround-sound processors. The 30-pin connector and DAC circuitry is housed within an all-metal chassis for its stability and noise rejection properties. An S-Video jack handles the devices video signal output interface to a video display. A compact remote control is included that allows adjustment of volume and all playback functions (including repeat and shuffle) and menu navigation. A robust outboard power supply delivers highly stable AC voltage for quality sound and performs charging for each device when docked. Made for iPod/Works with iPhone certified.