The Sonic Screwdriver is a versatile tool used by the Doctor for opening up hatches, panels and controls. This Future Sonic Screwdriver was seen in Series 4 and was used by Dr. River Song from the Doctor's future. Red & Blue light settings. Includes a hidden Neural Relay Indicator Panel. Requires 3x "AG13" button-cell batteries, included. Clamshell packaging. Officially licensed.