The CA-461 portable iPod docking speakers by Cyber Acoustics are compact and portable, yet provide the same big sound full-sized stereos produce. This six-watt system has two-inch high excursion dynamic drivers and is ideal for the active person who is constantly on-the-go. It is specifically designed for use with iPod and comes complete with all docking inserts to fit any iPod (excluding Shuffle and 3G). These docking speakers will charge your iPod while you're listening to your music, so you'll never have to worry about having a low battery. The speakers are AC powered or can run on four AAA batteries.