The rotary mobile charger is a hand powered mobile charger which can take great advantage at the outdoor without power source or while theres an emergency accident such as earthquake etc. Equipped with a LED, it can also act as an emergency light when necessary. - rotating 5 minutes, you will get 5 to 8 minutes talking time. Output: DC 5v or 8v, Current: 350mA or 500mA Plug: Nokia, motorola, siemens, ericsson, samsung, and so on. charming design. Palm size. Lightweight. Portable. - different connectors for different mobile phone models. - mutil-colours: Orange, blue and silver. - customize your requirement, such as printing your logo on the unit.