The Expert Mouse Wireless Trackball gives you the freedom to be hyper-productive without being limited by a USB cable. The trackball can be paired through Bluetooth® 4.0 LE to save a valuable USB port, or connected via USB nano receiver. KensingtonWorks™ software offers incredible customization, and optical tracking technology offers smooth, precise cursor control. Plus, our award-winning Scroll Ring lets you quickly scan up and down web pages or long documents. Add it all up and you get exceptional comfort and ease-of-use from the brand that has set the industry standard in trackballs for more than 20 years.

• Wireless connection via Bluetooth® LE or USB nano receiver
• KensingtonWorks™ software lets you customize all 4 buttons, adjust cursor speed. ChromeOS user can get HID functions for a trackball but will not be able to customize their device through KensingtonWorks.
• DiamondEye™ optical tracking technology for premium cursor control and accuracy
• Award-winning Scroll Ring lets you scan up and down pages with ease
• Large ball is designed as a perfect sphere to provide exceptional precision
• Detachable wrist rest supports hand and wrist for ergonomic comfort
• Ambidextrous design works equally well for both right-handed and left-handed users
• Auto-sleep helps conserve AA battery life
• Kensington worked directly with Microsoft to provide professional-level solutions that look as good as they function, so you can work like a pro.

• 

  Dual Wireless Technology

  The ultimate in wireless freedom, allowing you to connect either via Bluetooth® LE that allows you to save a valuable USB port or through a highly reliable 2.4GHz USB nano receiver

• 

  KensingtonWorks™ Customization

  Free downloadable software provides an even more personalized experience, giving you the ability to assign a wide variety of program functions to each of the 4 buttons, as well as adjusting cursor and scrolling speeds.ChromeOS user can get HID functions for a trackball but will not be able to customize their device through KensingtonWorks.

• 

  DiamondEye™ Optical Tracking

  Movement detection technology provides smooth, precise cursor control so you can get where you want on the screen quickly with less hand movement, improving productivity and efficiency

• 

  Scroll Ring and Large Ball

  Spin the dial to move up and down web pages or documents with complete ease. The red ball has been specially designed with an absolute spherical, hard surface for precise tracking and control.

• 

  Ambidextrous Design

  Works equally well for both right-handed and left-handed users to get the most out of their trackball

• 

  Detachable Wrist Rest

  Soft cushioning cradles the hand and wrist in ergonomic comfort for pain-free productivity during extended periods of activity on the computer

• Operating System(s): Chrome OS
• Color: Black
• Compatibility: Windows 7
• Connectivity: Wireless
• Controls: Customizable Buttons
• DPI: 400
• Features: Wireless USB Receiver Storage
• My Device: iPad
• Sensor: Optical
• Trackball Diameter (mm):
• USB Receiver Size: Nano
• Wireless Type: 2.4Ghz
• Warranty: 3 years
• Ball Control: Finger-operated
• Number of Buttons: 4
• Scroll Type: Scroll Ring
• Size and Fit: Ambidextrous