This shell-shaped speaker is powered by USB and connects to MP3 players, PDAs and other digital products using a standard 3.5mm stereo audio plug.
USB Shell Speaker
- Can be connected to computer, iPods, MP3 and MP4 players
- Li-ion battery is recharged by USB power
- Battery should be charged at least 2 hours
- Blue LED indicator
- On / Off switch
- Loudspeaker output: 2W
- Size: 65*60*25mm
- Weight: 45g
The USB Shell Speaker is available in two colors, green and silver, for $12.50 from gadget4all. (Update: Link removed because the website is gone.)