Features : 12 channel mic / line with jack combo Gain control with 3 band eq Dual engine digital multi effect reverb 24 bit 99 dsp Stereo RCA tape in & out with control Peak led and mute in each channel 2 aux (1 send, 1 aux effect) Headphone input with control MP3, USB, soundcard & recording with USB Bluetooth with tone control high & low Phantom power +48V each channel for condenser mic