Panasonic SC-PM321 XM-Ready CD Shelf System (Discontinued by Manufacturer) XM-Ready - XM Mini-Tuner and Home Dock Music Port for Digital Audio Player Connection Bass & Treble Tone Controls Total Output Power 4.3 Watts per channel (60Hz-20kHz, 6 ohms, 10% THD) iPod Playback and Recharge (Universal Dock for iPod)