iconBIT PSS CUBUS - portable acoustic system with built-in battery of extended capacity, combines MP3 player and FM radio, Alarm. High-quality loudspeakers, LCD display, USB, card reader, line input (iPhone, iPad) Mode changing by device turning (G-sensor) Playback: MP3 / FM / Line in, USB and SD card support Power: 2 x 3W Playback frequency range: 80Hz - 20KHz / Signal to noise ratio: 85dB / Distortion:  0.1% Power source: built-in battery / USB