At just 3 ounces, the Vapor Trail Outdoors and Vapor Trail Scents 3 Watt Headlamp doesn't sacrifice on brightness despite its size. A built-in rechargeable lithium ion battery with a 20 hour life span, paired with a battery indicator displaying the current charge percentage and estimated time remaining on the charge, offer lasting performance. Perfect for camping, biking, children, and everyday outdoor use, this headlamp is a must-have. The set includes a waterproof container and USB charging cable.