Natural handshake position : The Logitech MX Vertical's natural handshake position helps reduce muscular activity by 10 percent compared to a standard computer mouse - without any loss in overall performance Improved wrist posture : This wired and wireless bluetooth mouse features a distinct 57 Degree vertical angle that reduces the pressure on your wrist; it also ensures your thumb is positioned comfortably on the thumb rest User tested. Ergonomist approved : 88% of ergonomics professionals would recommend MX Vertical (Survey, Ergo Expo and IAE Florence 2018 attendees) Advanced Optical Tracking : The 4 000 DPI high-precision optical mouse sensor results in 4x less hand movement (compared to cordless mouse 1 000 DPI) and reduces fatigue. The cursor speed switch instantly adjusts DPI speed and accuracy with the touch of a button Easy-Switch and Flow-enabled : Connect to up to three Windows PCs, Macs, laptops and switch between them at the tap of a button or by simply moving the cursor from one screen to another with Logitech FLOW (Requires Logitech Options software) Rechargeable battery with Quick-Charging : MX Vertical wireless ergonomic mouse stays powered for up to four months on a full charge – and gets up to three hours of use from a one-minute quick charge Compatible with iPadOS 13.1 or later* via Bluetooth, in addition to Windows 8, Windows 10 or later, and macOS 10.13 or later. *On the iPad, pointing, clicking, and scrolling will be supported by enabling the “Assistive Touch” accessibility feature.