Flashlight Radio LED Flashlight with FM/AM Radio, Measures 146 x 57 x 55mm Features: 3 brushless generators to crank for power, low noise and high efficiency High sensitive FM and AM radio, speaker and earphone output and volume is adjustable Controlled by electronic switch, long life-span Convenient for using, never need battery, cranking to generate power Delicate sculpt, novelty and fashion Functions: Cranking to charge the built-in 80mAh or 3.6V Ni-MH chargeable battery Three lighting model: 1 LED lighting, 3 LEDs lighting, 3 LEDs flashing FM/AM radio function Specifications: Maximum brightness: 1 LED light: 11,000mcd 3 LEDs light: 30,000mcd Maximum luminous flux: 1 LED light: 1lm 3 LEDs light: 2.7lm Working time after 1 minute cranking: 1 LED light: 60 minutes 3 LEDs light: 40 minutes 3 LEDs flash: 60 minutes FM radio: 8 minute (comfortable) Receive scope of the FM (frequency modulation): 87 to 108 or 76 to 91MHz Receive scope of the FM (frequency modulation) 530 to 1,600kHz Sensitive degree: FM 15uV Sensitive degree: AM 3mV/m Working time after being charged fully: 1 LED light: 5.5hrs 3 LED light: 3.5hrs 3 LEDs flash: 5.5hrs FM radio: 55 minutes (comfortable) Flash frequency: 2Hz LED lifetime: 50,000 hours Switch lifetime: 100,000 times Plastic part lifetime: 5 years Whole unit lifetime: 5 years Size: 146 x 57 x 55mm