Stadium USB Speaker
Recharged/Powered by USB
Built-in rechargeable Lithium Ion battery
Simple, just plug-in, no driver install
On/Off switch with Blue LED indicator
Apply to any audio devices with 3.5mm headjack, e.g. PC, Mac, iPod, iPhone, PDA, MP3 player, CD player ... etc.
Dimension: 70 x 59 x 31.7mm