M720 Triathlon Multi-device wireless mouse. Built for endurance, versatility and comfort. Succeed in a multi-device world with M720 Triathlon mouse. You'll power through tasks by switching seamlessly between 3 computers and fly through documents and web pages with hyper-fast scrolling. Boosted efficiency means this Bluetooth® and Unifying mouse lasts for 24 months on a single AA battery. All that in a full-size shape fitting comfortably under your hand.