Universal Mains Adaptor for UK economically powers any suitable item using up to 12V (800MA). Suitable for toys, musical keyboards, computer games and other electronics with a DC (direct current) socket. You'll save a fortune in batteries! Output voltage and polarity is fully 'switchable. It has six settings between 3V and 12V to ensure connectivity with all types of appliance, it also has a 6-way output plug