Key features: Unit size: 134X42X67 MM Unit weight: 176g Working Principle: The product adopts cranking for power to charge its built-in chargeable battery as well as charging external things via the DC jack. The built-in battery can also supply power for the radio and lighting circuit, so that to realize functions of AM/FM radio and lighting. Functions: 1. High efficient power generation by cranking. 2. FM/AM radio. 3. Charging mobilephones or other digital things in emergency use. 4. Lighting. Features: 1. Cranking for power, no external batteries are needed, keep energy by built-in rechargeable battery; Green, environmental friendly, economy, safety. (the common battery will leak easily), reuse limitlessly. 2. Low noise but high efficiency, Low power consumption; Long working time. 3. It adopts the best integrated radio circuit with high sensitive FM/AM radio that can catch every wonderful electric wave in anywhere at any time. 4. Radio tuning display. 5. Speaker or earphone output, the volume is adjustable. 6. That can solve the extremely urgent problem when your phone or other digital things run out of power. 7. Mini size, simple outline and elegant appearance. Packaging: 50 pcs per carton, measurement, 40X32X25cm, gross weight, 12.00kgs