Wireless speaker BAM: music output 3 watt, to be paired with wireless-enabled devices, such as mobile phone, wireless MP3 player, tablet, etc., plays MP3 files from microSD card or USB drive (card and flash drive not included), input power: 5V/1A, high-capacity rechargeable battery, capacity: 300 mAh, incl. charging cable with Micro-USB connector, control buttons on top, on/off switch on the back, non-slip feet