Green 3 MOA Dot Shake Awake/Motion Deactivated Standby Up to 50,000 Hours of battery life IPX7 waterproof Side Mounted Battery Parallax Free 8 Daytime Settings/2 Night vision Settings The Cyelee GT10 Rifle Green Dot Sight is a close range electronic sight for rapid and accurate target acquisition of close range targets out to 100+ yards. It comes with all the bells and whistles including: A state-of-the-art green dot led diode optical system providing up to 10 times the brightness intensity and 5 times the battery life of cheaper LED powered green dots; lasts up to 50,000 hours of battery life on a single CR2032 battery.