NO BATTERY !!!!!!!!!!!!!!!!!!!!NO BATTERY !!!!!!!!!!!!!!!!!!!!NO BATTERY !!!!!!!!!!!!!!!!!!!! 1.Model No: G303(Green Laser Pointer)2.Body color: black3.Net weight: 110g4.Body material: Aerometal5.Switch: momentary switch6.Focus mode: adjustable focus7.Wave length：532nm8.Output power： Max 5mw9.Expected lifetime: > 8000 hours10.Working time: > 1 hour11.Battery:18650 Li Battery or 16340 li Battery (NOT INCLUDE BATTERY)12.Laser range: 1000-8000 meters13.Max brightness: > 350lm