Technical Pro WASP300L 6.5" Portable PA System with Rechargeable Battery, Light Blue USB flash drive & SD Card inputs accept drives up to a maximum of 32GB and will playback .mp3 Play/Pause, Previous & Next Track buttons for USB flash drive and SD Card inputs 1/4'' microphone input Microphone volume & echo controls, Compatible with AC & DC (12V) Car Power Built-in rechargeable battery fully charges in approximately 8 hours Perforated steel grill Integral top carry handle