LED (Light Emitting Diode) 100% Safe for the Eyes. Unlimited Eye Relief for flexible mounting. Electronic Control Panel for turning Green Dot and Red Laser On/Off and for adjusting Green dot brightness levels. Integrated Red (Class IIIa) Laser that is fully adjustable for zero. Three Rail Sighting System with three rails for mounting Accessories. Adjustable Locking Quick Release Mount for mounting onto most weaver and Picatinny type rails. Powered by 3 Volt Lithium Batteries (CR123A included) for longer battery life. Includes Extra Battery and Mounting Tools. Black Anodized Aluminum Body. Dot Size: 2 MOA.