Four instruments or a combination of microphones and instruments can be plugged into this mixer, with one output to your amplifier. It has a master volume control to control the output of your mixed settings. 

All inputs and outputs are standard guitar type lead 1/4" (6mm) jack sockets.

It is powered by a PP3 9 volt battery or a 9 volt 300ma mains adapter. (Not Supplied)

Comes complete with a 1/4" jack lead.

Invaluable when you run out of inputs on your main amp or mixer ... also saves you all the trouble of having to unplug and swop around if you play more than one instrument on stage.