An extension of the Tardis' fantastic advanced technology, this is the Doctor's second best friend. It's a multi-functional device that operates by emitting pulses or waves of sound energy. So powerful it can break rock, shake a lock mechanism loose or vibrate the molecules of a material so fast they weld together. With various power settings and functions we've yet to see, the Sonic Screwdriver is the ultimate indispensable tool to have when adventuring through time and space! This faithful copy of the Doctor's trusty Sonic Device activates in either closed or open mode. Pressing the button on the side of the handle activates the UV LED and sound FX. Remove the hilt cap of the Screwdriver to reveal hidden coded messages from your friends and enemies. Black ink pen also included. Requires 3 x LR44 batteries (supplied for demonstration only). For ages 5 years and over.