The eotech clipir uncooled thermal clip-on device features state-of-the-art image enhancement algorithms developed to provide users with an unrivaled day/night vision advantage in detecting, observing and engaging targets.Eotech thermal products incorporate the latest in ir sensors, electronics and optical technologies to deliver world leading reliability, superior imagery and range performance.Simply mount the clipir in front of a low magnification range (1-8x) day scope to provide thermal detection, observation and engagement while maintaining the day optics ballistic zero.Features an intuitive user interface and attaches quickly and easily to 1913 picatinny rails.Magnification: 1-8xField Of View: 40 DegreesBattery: AAWeight: 35.20 ozFocus Range: 10m to InfinityBattery Life: 10 hrs