*Powered by a 3V Lithium Battery*Keep your aim point on target with this dust proof*Composite durable material,Keep your aim point on target with this dust proof, shock proof, and fog proof reflex sight.Powered by a 3V Lithium Battery (included) this scope provides five levels of brightness control and the reticle can switch from red to green light to adapt to high and low light environments.Elevation and lateral adjustment allows you to make your shot as precise as possible.Enjoy using in all terrains and weather conditions.