Emergency solar, generator, battery powered AM-FM Radio w/ Lantern Light. The unit uses a rechargeable Ni-Cad battery: a rechargeable battery that has the ability of recharging up to 500 times. This model of Solar and Generator Powered Radio with Light is the GM- 713. This remarkable radio and light recharges these batteries using either the hand crank and/or solar panel to charge them. These batteries come pre-charged so they work right away. It also takes 2 AA regular batteries, but they are not necessary. You can simply charge the battery in the sun, charge it in artificial light, or play the radio constantly using these sources of light. After the battery has been fully charged and discharged, one minute of hand cranking produces 10 minutes of play. The radio is compact with dimensions of 7-1/2 inches in width, 5-1/2 inches in heighth, and 2-1/2 inches in depth. The radio can be listened to using headphones or earphones. To charge in car, 4.5 volt DC auto lighter can be purchased seperately.