No standalone lithium batteries are sold with the product. It features a built-in, non-replaceable flat lithium polymer pouch cell, USB rechargeable.
Precision laser sight, laser intensity/wavelength: <5 mW peak, 530 nm, Class IIIa. Extreme bright LED gun flashlight and laser sight combo.
Ajustable Rail System: GM-1091 flashlight for pistols adopts the adjustable rail system, which allows it to fit different kind of pistols.
Convenient Operation: Controlled by ambidextrous switch, easy to turn on and turn off.
LED light and beam sight can be turned on or turn off independently, therefore, you may have combinations of light and beam, light (strobe mode available) only, and green beam only.
The LED Flashlight and Green Beam sight are powered by a Built in rechargeable battery, which is charged with a Micro USB charging cord. The green beam can used to 9 hours. The powerful battery life allows you not to worry about running out of power.
What's in the Package: 1x Pistol Beam/ Light Combo(with built-in battery), 1x rail adapter, 1x Backup Screw, 1x Allen wrench, 1x Charging cable, 1x User Manual.