This is the Johnson J-Station amp modeling and effect processor. There are 14 guitar amp models, 3 bass amp models, 2 acoustic models and 12 fully customizable effects: Chorus, flanger, phase, rotary, tremolo, auto wah and pitch shift/detune- one of these effects at a time, but you also have the compressor, 4 delays, noise gate and twelve reverb types to use on or off seperately. There are also eleven different speaker cabinet emulations, and the option to place the effects in pre or post amp position. It has full stereo output, so running it to two different amps has a really kick-ass sound. Full midi implementation. The processor is 24 bit, and it has a built-in tuner and foot control options as well. The J-station features 30 factory presets and 30 user presets, all are fully customizable and fully tweakable in standard editing, as well as deep editing mode. The JVC headphones come with it, and they work great for monitoring while recording, also you can have the headphones plugged in without cutting the signal from the outputs. I have the user's guide so learning how to get the most out of this unit will be easy. Thanks.