Wi Digital Pad AudioLink Stereo Digital Wireless audio interface "Incredibly compact design - a full system fits in the palm of your hand Crystal-clear uncompressed 48kHz stereo audio Full-frequency spectrum response from 15Hz-20kHz Dual internal antennas Plugs directly into your iPhone, iPod Touch or iPad 30-pin dock connector Instant audio routing - any AudioLink transmitter can feed up to 8 receivers Fast, easy, no-tweak setup Digital wireless requires no FCC licensing" Crystal-clear uncompressed 48kHz stereo audio Full-frequency spectrum response from 15Hz-2kHz Dual internal antennas "Plugs directly into your iPhone, iPod Touch or iPad 3-pin dock connector"