Doctor Who River Song's Future Sonic Screwdriver 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. Electronic replica features Blue light settings and Sonic Screwdriver sound effects. Includes a hidden Neural Relay Indicator Panel. Sure to make a great gift for your favorite Doctor Who fan! Officially licensed Doctor Who product.