The Swarovski RC remote control can be used to control the main functions of the dS 4-24x50 rifle scope. Attached flexibly to the shaft, your wrist, or another location, it considerably simplifies operation.To use the RC remote control with the dS 4-24x50 the devices must first be connected (paired). This step only needs to be carried out once. FeaturesMeasure Distance and Display Corrected Aiming PointMake Display Brighter and Darker