A4Tech 40974 V-Track G9-500F-1 Black

Innovative V-Track technology utilizes vertical light which goes deep into the details of all surfaces. Guaranteed smooth and accurate tracking anywhere, even on furry textiles. Throw away your mouse pad! Input device Device interface: RF Wireless Purpose: Office Movement detection technology: Optical Scroll: Y Recommended usage: Notebook Frequency band: 2.4 GHz Design Colour of product: Black Form factor: Right-hand Wireless receiver interface: USB Power Number of batteries supported: 1 Battery type: AA System requirements Windows operating systems supported: Y Other features USB required: Y