Product name: Handy charger (E-Power). This generator can charge your mobile phone, mp3, digital camera or pda with high efficiency and high saturation. Providing self-power for light in situation of emergency. Built-in safe circuit, constant current, regular voltage, to protect your valuable mobile device. Specification: Max output voltage: DC 8V Max output current: 320mA Generator coil:3 phase Rechargeable Batteries: AG13*3 Ni-Mh batteries Lamp: white color LED Size: 10.9*4.6*3.9cm Features: Stand by: 30~60 minutes after winding for approximately 3 minutes Talkingtime: 3~5minutes after winding for approximately 3 minutes Operated by : By rotating the winding handle Max rotational rate: 140 cycles per minute