The low-profile yet rugged aluminum housing of Vortex Venom surrounds a large viewing window that makes for a wide field of view and sight picture with next-to-no obstruction for rapid shooting transitions and target acquisition. Battery Life: Up to 150 hours on highest setting. Up to 30,000 hours on lower settings. Included in the BoxWeaver / Picatinny mountT-15 Torx wrenchRain coverLens clothMounting screwsCR 1632 batteryScrewdriver Vortex Venom 1x Red 6 MOA Red Dot VMD-3106