Use the Clip-on as a handheld tracker or turn any traditional riflescope into a thermal scope with a simple attachment. The Clip-on's 4 power zoom and 4 color palettes ensures nothing will make it through your sight picture unnoticed. Burris Clip-on will help you take night hunting to a whole new level. Adaptor sold separately.4 color palettesHot trackConverts traditional riflescope to a thermal scopeUse the zoom on your traditional scope to enlarge your targetAdjustable contrastAdjustable brightnessIP67Runs on CR123A *or* ICR16340 - CR123A has a longer runtimeIncluded cable plugs into the BTC with 7-pin LEMO connector, and the other end is USB-A for running off of a USB power bankOptional Y-cable offers the above power bank option, plus RCA video-out from the same 7-pin LEMO port.