20 total inputs: 16 mic, (four with XLR/TRS combo connector) and two stereo line (TRS) Dedicated talkback mic input Stereo Main L/R outputs (XLR) Ample monitor outputs (eight total) with 6 mono auxiliary mixes (XLR) and 2 stereo auxiliary mixes. The 2 stereo aux outputs can drive wired in-ear monitors (IEM) directly. Mono auxiliaries may be linked for stereo use. Superb sound quality Class-A microphone pre-amps 32-bit floating point processing 24-bit AD & DA convertors Input channels are fully-featured: Four-band full parametric EQ Variable high-cut and low-cut filters Gate Compressor (with de-esser) Main and auxiliary outputs feature: 1/3-octave graphic EQ (four-band parametric EQ on stereo auxiliaries) Limiter Delay Notch filters Four professional quality stereo DSP effects. Choose from: Two types of reverb Mono delay Stereo delay Chorus Pitch-change A pitch correct processor is assignable to any input channel. Eight DCA and eight mute groups. Color, capacitive touch screen graphical user interface combined with hardware controls for fast and intuitive operation. Great results and easy to use Input channel preset library features over 100 presets developed by experienced concert engineers specifically for live sound applications. Wizards assist with input gain adjustment and effects selection and routing. On board Info system gives you instant access to the user manual. Save your own channel presets and complete mixer scenes to internal memory or USB device. Capturing live performance to multi-track has never been easier. Record 22 tracks (all inputs plus a stereo mix) directly to USB hard-drive. Mix down on TouchMix or import into your favorite DAW. Complete mixer remote control via free iPad® App. Monitor control via iPhone/iPod Touch App. Multiple Wi-Fi Connectivity options Security Lockout Modes USB Wi-Fi interface and carrying case are included.