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 patented 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 30 years.

• Wireless connection via Bluetooth® LE or USB nano receiver
• Compatibility with Bluetooth 4.0 LE: Windows® 10, 8.1 and Mac OS X 10.8 and later*
• TrackballWorks compatible with Mac only when using 2.4GHz connection
• Kensington worked directly with Microsoft to provide professional-level solutions that look as good as they function, so you can work like a pro.
• Optimised for your Windows 11 Trackball Functions
• *Windows ARM-based computers are currently not supported. Please check back for future updates on compatibility.
• This product is designed to comfortably fit users with average to larger sized hands.
• TrackballWorks™ software lets you customize all 4 buttons, adjust cursor speed
• 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
• Compatibility with USB receiver: Windows® 10, 8.1, 8, 7 and Mac OS X 10.8 and later

• Optical 400 DPI Black
• Ambidextrous RF Wireless + Bluetooth
• Scroll type: Ring Buttons quantity: 4
• AA