Quantity: 1 - Color: Silver - Material: Rubber - With quick release buckle - Emitter Type: LED - Emitter Number: 3 - Light Color: White - Lumen: 10000mcd - Built-in 3.6V 80mAh Ni-MH battery - FM frequency: 88~108MHz - Auto searching FM stations - Speaker and earphone two ways audio output - Volume adjustable - With USB charging cable directly charge for your USB powered products - Emergency alarm function (>=50dB) - Hand cranking for 1 minutes (120 rotations) the lamp will light 10~15 minutes - Can be charged 500 times if use normally - Operating temperature: -20'C~60'C - Operating humidity: 30%~90% - Packing list: - 1 x Flashlight - 1 x USB cable (52cm)