Always Handy. Always Bright. The compact Aura 2.0 Key Chain Flashlight is so small and lightweight that it effortlessly attaches to your keychain. Clip it to your bag, purse, or belt loop for instant access to brilliant, reliable light whenever you need it. Don't underestimate its size - the Aura 2.0 100 lumen key chain light packs a powerful punch. Police Security's 1 AAA Alkaline Battery is included.