Dual-Fuel System: Power your adventures with unmatched flexibility: Equipped with a built-in 14500 battery (USB-C rechargeable) and compatible with standard AA batteries (sold separately). Never be stranded without light, whether during emergencies, outdoor trips, or daily tasks. Ultra-Portable Design with Two-way SS Clip: Engineered for on-the-go convenience. At 3.8 inches and 2 ounces, this compact flashlight slips into pockets or secures to hats, backpacks, belts, and gear via a corrosion-resistant stainless steel clip. Perfect for hands-free illumination during hiking, repairs, or midnight dog walks.