Easy-Switch technology The Logitech M720 Triathlon Wireless Optical Mouse can be paired with up to three computers simultaneously. Switch seamlessly between them at the touch of a button for easy multi-tasking. Three illuminated numbers make it easy to see which device you're connected to. Hyper-fast scrolling Whether you're reading through a long document or browsing web pages, you can easily scroll up and down at high speed with the M720 Triathlon. When you need precise control, you can switch to click-to-click scrolling with ease. Durable design With buttons designed to withstand up to 10 million clicks, you can use the mouse with confidence. The large design lets it sit comfortably in your palm, while the rubber surface makes it soft to the touch. For added convenience, a single AA battery can provide up to 24 months of battery life. Customise the mouse By downloading the Logitech Option software, you can customise the M720 Triathlon to suit your needs. Set up and assign tasks to each of the eight buttons with simple step-by-step instructions.