EnerPlex Jumpr Flashlight Battery (JR2800FL) Built in 2,800 mAh battery to charge small electronic devices Battery can provide 1 full charge to most smartphones and can charge other USB-enabled electronics such as tablets, digital cameras, MP3 players, and more Lightweight, portable extremely bright flashlight Flashlight has 2 modes: full flashlight and blinking Perfect accessory to add to your daypack, your camping kit, or your disaster relief kit