Doctor Who 4th Doctor Sonic Screwdriver -- Underground Toys

From Underground Toys! The Sonic Screwdriver is a versatile tool and defensive device used by the Doctor for opening up hatches, panels, and controls. His fourth incarnation made yet another style of Sonic Screwdriver but with many more features and functions including micro soldering of circuitry, cutting wires, and bulkheads, and even detonating Dalek explosives. This is an electronic version of the Fourth Doctor's Sonic Screwdriver with 2 sounds and spring loaded sound activation.