Kensington Expert Mouse Optical Trackball Wireless

Experience the ultimate freedom, comfort, and productivity with the Kensington Expert Mouse Wireless Trackball. Work without being limited by a USB cable. Connect via Bluetooth LE to save a USB port, or use the included USB nano receiver. The KensingtonWorks software allows for incredible customization, and the optical tracking technology provides smooth, precise cursor control. The patented Scroll Ring makes it easy to quickly scan up and down web pages or long documents. Enjoy exceptional comfort and ease-of-use from a brand that has set the industry standard in trackballs for over 20 years. Features: - Wireless connection via Bluetooth LE or USB nano receiver - DiamondEye optical tracking for premium cursor control and accuracy - Patented Scroll Ring for easy page scanning - Large ball designed for exceptional precision - Detachable wrist rest for ergonomic comfort - Ambidextrous design for both right and left-handed users - Auto-sleep function to conserve battery life Battery Life Tip: For extended battery life, use alkaline batteries and turn off unnecessary features when not in use. Store in a cool, dry place and remove batteries for long-term storage. Asking $100 for both.