NEBO PROTEC Red Laser Firearm Sight uses a 5-milliwatt, 650 nanometer laser to sight up to 450 yards away. The PROTEC's batteries will produce 4 hours of continuous run time. The compact body of the PROTEC Laser Sight is constructed of aircraft-grade anodized aluminum making it a lightweight, yet powerful laser sight. The PROTEC is also water-resistant. The On-Off switch located on the side to provide convenient one-finger operation. A small screwdriver is included to adjust the windage and elevation of the laser.High-visibility 5 mW / 650 nm red sighting laserLaser travels over 450 yardsWater-ResistantThree AG13 Batteries included