Portable wireless 20 watt amplifier ideal for carnivals, school fetes, evacuation drills, teaching and any event requiring a free standing speaker system. Lightweight, portable and simple to use, transport and store. Plug into the electronic starting pistol for greater starting gun/whistle range. Compatible with iPod, MP3 units for dance classes, motivational music for circuits and fitness training. Unit dimensions: 18.5cmL X 9cmW X 22.3cmH. Battery and power cord supplied.