... speaker,speaker box,portable speaker Mp3 Speaker,mini mp3 speaker,speaker box,portable speaker* Portable ... Built-in 1GB Flash memory * Built-in mp3 player, alarm clock, calendar, and thermometer * Support ... format: MP3, WMA, WAV, WMV, * Stereo audio output, ... A-B repeat function * Audio input (Line in) * S/N ratio 75dB * Distortion: <0.55% * USB 2.0 ...