Compatible with MP3 players and iPod Nano (including 5th Gen), iPod iTouch, iPhone 3GS, iPod Mini (2nd Gen). Not suitable for iPod Shuffle. Charges and syncs your iPod. 35 watt speaker with integrated 15 watt subwoofer for a high quality stereo sound. Digital power amplifier for fantastic low end response. Remote control with adjustable treble and bass.