Core Scratch is the little brother of the Core MIX-2 USB. It has 4 Line inputs, a microphone input and a Bluetooth playback module. The Bluetooth playback module makes it possible to mix your connected players with wireless devices such as a smartphones or tablets. It also has one input that can be switched between line and MP3 level. The MP3 level adjusts the input sensitivity into the correct level for MP3 players, smartphones or tablets. Now you can playback your MP3 devices directly without signal loss. The Core Scratch has smooth faders, +12/-26dB tone control and is built with high quality components to get the best performance. Get ready to Scratch!