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Meet ERGO M575—a wireless trackball with incredibly easy thumb control. This is the newest addition to the Logitech Ergo series that promotes increased comfort, lower muscle strain, and improved, more natural posture. Forget about sliding around a mouse or moving your arm to move the cursor. The ergonomic sculpted shape of ERGO M575 minimizes movement and maximizes comfort while keeping your hand and arm relaxed. With two ways to connect—via Bluetooth® Low Energy or the USB receiver—the trackball provides you a powerful, stable signal with a 33 ft (10 m) range. (1)No need to move your trackball, so it’s perfect for tight workspaces and busy desks. A single AA battery lasts up to 24 months with the included Unifying USB receiver and up to 20 months with Bluetooth® Low Energy. (2)

Built for endurance, versatility, and comfort, the M720 Triathlon Mouse helps you succeed in a multi-device world. You'll be powering through tasks thanks to the Easy-Switch technology that lets you switch seamlessly between 3 computers. You'll fly through documents and web pages using the hyper-fast scroll wheel, and hardly spare a thought to changing batteries thanks to 24 months of power on one AA battery. The large-sized sculpted shape fits comfortably under your hand, and the keys are designed to withstand up to 10 million clicks. You can connect to Windows® and Mac via the tiny Unifying™ receiver or via Bluetooth® Smart wireless technology.

A new standard of comfort and precision. Logitech's most advanced trackball for trackball enthusiasts and and consumers searching for alternatives to mice and touchpads. Delivers 20% less muscular strain compared to a regular mouse. A unique adjustable hinge offers personalized comfort - choose the best angle for you between 0 and 20°. Precision mode button allows to instantly switch between speed and precise tracking. Easy-Switch™ and FLOW-enabled for effortless multi-computer workflow. Pair up to 2 computers and easily switch between them, copy and paste text, images and files. 1 Long-lasting and fast rechargeable battery: up to 4 months on a full charge and one minute of charge gives up to one full day of use.2 Connect using the included Logitech® Unifying™ receiver or via Bluetooth®. 1 Requires Logitech® Options™ software, available for download at logitech.com/options. 2 Battery life may vary based on user and computing conditions.