The X-Mini Capsule Speaker is a revolution in portable audio technology. It’s the World’s first pocket size speaker with built-in expandable bass enhancer and rechargeable battery. Striking the perfect balance of portability with absolutely no compromises in either sound quality or volume! Tiny speakers, maximum bass and sound quality and volume that are so easy to use, just plug and play! Easily rechargeable through USB – up to 8 hours playback per charge! Small, compact and mobile, take it anywhere you go and it's compatible with iPhone, iPod, MP3 players, Laptops, PCs, PSP, Nintendo DS – anything with a 3.5 mm audio output!