Led to indicate power availability.Usb power cable for using usb power
Application : home use or office use automatic pencil sharpener.
As the design is fashion and compact, you can put it on the desk or any other small space. Usb powered is convenience for you without changing batteries all the time.
Otherwise, no any additional software/driver needed for user friendly.
System: usb1.1 or 2.0 port, mac os 9/macos x/win98se/me/2000/xp
Features: usb auto pencil sharpener with flashing led that confirms your pencil is actually being sharpened.
Specification: weight: 230g, dimension: 10*10*10 cm
