IFITech Portable Dynamo Emergency Solar Crank FM Radio with LED Flashlight Solar and hand dynamo powered emergency light, charger and radio. When in travel or during emergency works out very handy safe and sound keep your household or travel prepared with the ifitech crank radio. It is a preparedness radio with fm along with emergency light and a portable power bank. It is great to take on camping trips. It will light your way, provide music around the fire, give you access to news and weather and also can charge your phone more power to you spin the hand turbine for one minute to get 30 minutes of radio and flashlight use or place the radio in the sun for a passive charging option. There are also rechargeable li ion battery and dc power alternatives (mini usb included). Power your phone the ifitech radio also serves as a renewable power source for your other critical devices because of its usb smartphone charger. Simply plug in your phone into the usb port and power will automatically "dump charge" to your phone, just like plugging into the wall. There are many products out there that have a usb cell phone charger, but most don't have the capability to charge a smartphone like it. Lights the way the bright led flashlight is always handy... At home, at the office or even in the car specifications fm: 87 108mhz battery power: 2000 mah or 3. 6V li ion working voltage: 2. 7V to 4. 2V maximum power consumption: 0. 5W led flashlight: 1w or 50lm waterproof level: ipx 3 dimensions: 128 x 60 x 45 mm or 5 x 2. 4 X 1. 8 In comes with 1 year warranty.