Danelectro mini amplifier, twin speakers, with tremolo and echo effects. Controls: volume, gain and tone. Headphone out (mini jack). Runs on 9V battery or adapter.

This one cool little amp, not just for looks, but also features, such as the effects. Very few, if any, mini amps have these effects built in, and on top of that you can even determine the speed of the effects. 

The size is about 15cm x 15cm x 4cm.

A great buy at only $99!