Compact lightweight design of only weighing 2.3 ounces. Single Unit, Environmental friendly rechargeable flashlight for immediate emergencies. Very convenient. Smart looking and handy. No worry about dead batteries. Works by cranking the handle with your hand, No need any power, No environment pollution , low noise and health . Comparing with common torch, it can b several times on lift. Constantly using this health torch, it can benefit to your palm, arm and shoulder stretching and blood circulation so as to let your hand relax and brain clever. hand and brain coordinate and promote your brain memory and health composition. Suitable for Home, outdoor activities, emergencies, put it in your car, put it in your bag and more.