Monster GO DJ Portable Mixer Digital Turntable with LCD Touch Screen Internal and External Memory: Up to 2GB using Internal Memory and 2TB using SD cards Sound I/O : 3.5mm Stereo Jack x 4 (Line-out, Headphones, Line-in, Microphone) Line-out 1.0 Vrms / Headphones : 1.0 Vrms General : 320 x 240 resolution color display 2EA, Interface : Mini-B USB x 1 (for USB 2.0 connection and power supply) Internal Li-Polymer Battery / Max 12hrs play back / Support Sleep mode