The Toneworks AX5G Guitar Modeling Signal Processor contains 58 versatile and realistic modeling effects. It's powered by KORG's proprietary "REMS" modeling technology and includes a wide range of amps, cabinets, modulation, and delay/reverb. Not only does the AX5G pack a wide variety of essential effects into a compact processor, but it also boasts the same quality of effects as as the flagship AX3000G model of the TONEWORKS series, delivering professional-level, realistic sound in a very compact package. The AX5G features a built-in expression pedal that can be used to control volume, wah, or many other effect parameters, giving you a virtually limitless range of possibilities. With easy operation that will have even a beginner playing great sounds right away, a compact size that slips easily into the pocket of your gig bag, and the flexibility of battery-powered operation, this unit makes it easy for you to enjoy top-level guitar sound in any situation.