· Cranking for power generation · Solar-energy for power generation · Emergency mobile phone charger · Charging indicator · Sensitive FM radio · 4pcs Ultra-bright LED · Full of useful features make it ideal for emergency · Energy self sufficient via its solar panel & crank dynamo · No exterior battery is needed · Solar panel: 84* 28mm 5.5V 50mA · Built-in lithium battery: 3.6V 120mAh, LIR2450 · Charge time: 3H( strong sunlight