Features: LED (Light Emitting Diode) 100% Safe for the Eyes Unlimited Eye Relief for flexible mounting Large 40mm Objective lens for a wide field of view Adjustable Quick Release Mount fits virtually any weaver/Picatinny type rails Integrated Red (Class IIIa) Laser that is fully adjustable for zero Powered by 3 Volt Lithium Batteries (CR2032) included Includes Extra Battery and Adjustment Tools Black Anodized Aluminum Body International orders will not include batteries.