Line 6 Tone Port KB37 37-note full-sized keyboard with Pitch/Mod wheels for MIDI control, 16 classic and modern amp models based on POD xt , 24 speaker cabinet models based on POD xt , 5 bass amp & cab models based on Bass POD xt , 24 studio and stompbox effects Stereo Line Inputs for your line out level gear, Stereo Digital Output S/PDIF via RCA, Stereo Line Outputs via balanced 1/4-inch, Stereo Monitor Input via stereo 1/4-inch jack Expression pedal input to control GearBox wah/volume or MIDI, Headphone Output with independent volume knob, VU Meters assignable to input, record send, output and monitor levels, Dual footswitch jacks for control of GearBox or MIDI/recording software Pro Audio Performance with over 100dB signal-to-noise & dynamic range, ToneDirect monitoring, Transport & Control button/knobs assignable to GearBox and MIDI/recording software, 44.1 & 48KHz, 16 & 24 bit recording, 96KHz mode 2 Mic Inputs with +48v Phantom Power, 2 Guitar/Bass Inputs, USB-powered, Rock-solid Drivers: ASIO, WDM, Mac OS X, Includes Ableton Live Lite, Mac OS X and PC compatible! Expression pedal input to control GearBox wah/volume or MIDI, Headphone Output with independent volume knob Pro Audio Performance with over 100dB signal-to-noise & dynamic range, ToneDirect monitoring, Transport & Control button 37-note full-sized keyboard with Pitch/Mod wheels for MIDI control Headphone Output with independent volume knob 2 Mic Inputs with +48v Phantom Power, 2 Guitar/Bass Inputs, USB-powered, Rock-solid Drivers