This is a Digitech RP90 guitar effects processor, packing a lot of professional-quality effects into a small footprint, including:

Compressor;

Pickup simulator:

Wah pedal;

12 Amp/Cabinet models;

6 Distortion models

Equalisation;

Noise Gate;

Chorus, Flanger, Phaser, Tremolo, Panner, Vibrato and other modulation effects;

Pitch shift;

Digitech Whammy effect

4 Delay types;

3 Reverb types;

The unit also incorporates a drum machine with 30 drum patterns and a tuner.

There are 50 pre-programmed preset sounds, and space for the user to add 50 more of their own.

The unit can be powered a 9v adapter (300mA minimum) only - not included, but check my other ads in case there is a compatible adapter there.

I am including a printout of the manual with this unit.