When disaster strikes the Survivor Emergency Flashlight should be an essential piece of your emergency equipment. This wind-up flashlight is a hand held battery free flashlight. It combines radio, alarm, led flashlight and cell phone charger in one. It does not need any external power source. With the Survivor you can generate light, charge mobile phones and listen to the radio anywhere, anytime with the built in wind-up handle. It is a true lifesaver and can generate up to one hour of power.