Visit Amazon sites : br DBEST London PS4003 Duo Rechargeable Mini-Speaker Setbr br Engineered for exceptional clarity of sound br Two powerful built-in amplifiers for a surprisingly loud volume br 360 degree stereo system br High-capacity Lithium polymer batteries for up to 48 hours continuous playback br Sleek ultra-portable design with magnetic joining bases br Compatible with phone laptop iPodiPad and all audio equipment featuring a 35mm jack