keep this 4 function emergency power station on hand for use in any emergency. it works as a flashlight radio siren and cell phone charger. no batteries are needed. crank handle 1 minute for up to 30 minutes of bright light 2 minutes of talk time on your cell phone and 15 minutes of radio. the handle even doubles as a stand. included are three free cell phone plugs for most motorola samsung and sony-ericsson phones.