The Streamlight TLR-7X Contour Remote is designed for one-handed shooting- ideal for dog handlers, SWAT teams, door breaching and close quarter operations. The TLR-7X Contour Remote weapon-mounted light features multi-fuel capability – powered by either one (1) CR123A or one (1) Streamlight SL-B9 lithium-ion rechargeable battery. The light includes customizable rear paddle switches, as well as a contoured remote switch that activates naturally when using a firing grip.