The Nitefox Keychain Flashlight 100lm emits up to 100 lumens of light, visible from up to 1 mile away. It offers up to 60 hours of use with its 3*LR44 button batteries and comes with 6 extra batteries for backup. Its 1.3-inch length makes it a perfect size for everyday carrying. The case is crafted from aircraft aluminum with an anodized finish, copper, and stainless steel, making it durable and waterproof. It comes in a nice package gift box, being a great gift choice for any occasion. Also included is a 24-month warranty.