Designed to resemble a classic amplifier for an electric guitar, this iPod speaker delivers crisp digital audio from its full-range 5-watt driver. Just like its on-stage cousins, it has three functional dials for volume, treble, and bass control--a rarity among MP3 speakers. Powered by three AA batteries (not included) and with its audio cable that plugs into an MP3 player's earphone jack, it can play music anywhere, or it can be connected to a computer via the included USB cable that provides power and audio. The durable plastic cabinet sports familiar details like corner protectors, a metal front grill, and a textured surface that conceals roadies' fingerprints. 5" H x 3 3/4" W x 3 1/2" D. (1 1/4 lbs.)