The Macally PodWave is designed to let you share your sounds anytime, anywhere. These tiny, portable, battery-operated stereo speakers produce exceptional sound whenever and wherever you please. At a scant 2.8 ounces, the PodWave lets you enjoy your iPod music without headsets or large wired external speakers. The PodWave plugs into the headphone jack of any iPod or iPod Mini-- in fact, it's compatible with any MP3 player with a 3.5mm headphone jack (hint: that's just about all of them). The speakers are powered by a single AA battery that fits inside the unit's sleek cylindrical housing. Macally rates battery life at eight hours under continuous use. A handy on/off switch conserves juice when you aren't listening.