Solar portable desk light 1.Flashlight , alarm, desk lamp , radio, charger 2.Solar charging , DC charging , crank dynamo Solar lamp ... /cm2) 2.Inner battery :3.7V 1500mAh Polymer-Li 3.Radio frequency :FM76~108MHz 4.Speaker power: 8Ω 0.5W 5 ... indicator of "Radio9" will be lighting . The original frequency of radio is 108MHz. Press button(" "up, " "down)to scan broadcasting station ...