Alesis Multimix 4USB FX, 4-Channel Mixer with Digital Output, Low-noise 16 bit / 44.1 kHz digital signal via USB for easy computer recording, 2 XLR inputs with gain, switchable 48 V phantom power, high-pass filter and 2-band EQ, Hi-Z guitar input, 4 Line inputs, 15 DSP effects, Multi-colour level meter, Main and headphone outputs with separate volume controls, Dimensions (W x H x D): 187 x 217 x 70 mm, Weight: 1.1 kg, Includes USB cable, power supply, quick start guide and software Pro Tools First ""Alesis Edition"" (download), AIR Mini Grand, DB-33 and Eleven Lite