usb flash dirve, pen usb flash drive,usb flash Unit Size:145*16mm 4 in 1,laser,pen,usb drive,compass Material:Metal smart usb flash dirve, flash driver,usb diskSpecificationUnit Size:145*16----------------------------------------------------------------------------------Novel ... -70°CStorage Temp. 50-80°CAccessoriesUSB cable,CD,Manual, Slingoptional usb flash drive, pen usb flash drive,usb flash