... use , clear , loud voice ;4 , the use of high - performance polycrystalline silicon solar panels charge , environmental protection and long ... , mechanical power generation can also be used , structural precision, high efficiency ;6 , Samsung , Nokia , Motorola mobile phone charging ... ) : 80Packing size ( CM ) : 43.5 * 33.5 * Crank Dynamo High brightness LED Flashlight with Mobilephone Charger & Radio