The Targus Blue Trace Wireless Mouse, features the latest Blue Trace technology for accurate & precise tracking. Blue Trace technology combines the power of optical technology with the precision of laser technology for remarkable tracking on almost any surface including wood, granite, & carpet. The ergonomic design reduces wrist strain for comfort & the mouse is ambidextrous for both left & right handed users. The Micro USB (Universal Serial Bus) receiver can remain permanently in the USB (Universal Serial Bus) port for instant connectivity or can be easily store inside the mouse when travelling Wireless capability eliminates clutter from the workspace while RF 2.4GHZ technology significantly reduces cordless interference & signal drops allowing the mouse to work up to 10meters away.