MiNi Speakers: 1. Used for iPhone, iPad, GPS, PSP,Comuter and so on. 2. Different color can offer. MiNi Speakers1. Playing Music with long time.2. LineIn Function Used for Notebook, mp3 mp4 ,iphone and so on.3. Reaction temperature,0°C ~ 40°C4. Size,52 x 37 x 37 mm5. Weight,53g