sony srsm50 blk compact stylish transportable speaker black
dual power support -- use the ac charger when at home or indoors and take optional batteries not supplied with you when are out and about for ultimate convenience . integrated mechanism for compact carrying -- speakers can clip together to allow you to carry them easily yet simply set them up apart . total output power of 5w 2.5 w 2.5 w -- great sound out of a little package .