Handy Dynamo flashlights or Wind Up Flashlight is a handy dynamo flashlight and mobile phone charger which can be used without any batteries. It's the best choice for emergency use. For example, you can put it in car or house for years without replacing the battery. When there is an emergency, it can help you to repair the car or recharge the mobile phones for emergency call.

The flashlight can be tied the waist with a card. This product is a hand emergency charger, which can give power to your mobile phone any where without the need for a power sources. Particularly useful for outdoor pursuits or in emergencies such as natural disaster that eliminates any other source of power. An 3 minutes charge by winding the handle will gain up to 3 minutes talking time for your mobile, and will illuminate 10 minutes. Its illumination range is 5-10 meters with clear visibility at night.