Built-in flash memory, capacity range:128/256/512/1GB/2GB/4GB No external power required, by USB connect directly System requirements: WINDOWS 98 SE or higher Portable date storage and exchange, can be written and erased 1,000,000 times One laser pointer indicator & LED light function Unit size: 133mm*16mm, battery :3*AG13
Color of the product's surface an be customized, we also can imprint or engrave customer's logo on the surface, so, it can be regarded as a perfect promotional or advertising gift!