Solar Crank Radio with built-in 2000mAh battery Product information - Portable solar crank radio - AM/FM Radio - 1W LED Flashlight - SOS siren - Solar panel on top - Hand crank dynamo - 2000mAh built-in battery (40-50 hours of sun, 2,5 hours of cranking or 4-5 hours via USB charging to fully charge) - Can also use 3 x size ""AAA"" batteries - USB for phone charging - Battery level indicator shows remaining power - Radio works for 12-15 hours on a full charge, flashlight 10-12 hours - 1 minute of cranking gives 3-5 minutes radio or 5-10 minutes flashlight