●The input 0.9V ~ 5V any DC voltage, can be stable output 5V DC voltage, with two AA battery input can output 500 ~ 600MA current, a single AA battery power output can be about 200ma current for mobile phones, Cameras, microcontrollers, digital products ●With USB connector,this can provide power for your mobile phone, camera, single-chip microcomputer and digital products. ●Onboard subminiature PFM control DC/DC boost controller chip. ●High conversion efficiency, up to 96% ●Applications: DIY a mobile power supply, only need one battery, you can output 5V voltage for your phone, MP3, MP4, PSP charger, it is easy. In order to power your electronic devices when your device needs 5V power supply, when you only have lithium battery, this module can be directly step-up to 5V, solve your problems.