OFFERS SUPERIOR ERGONOMICS - Your right hand can stay in upright neutral posture while mousing with Evoluent's VerticalMouse 4 Right Wireless. Its sculpted shape helps prevent your forearm from twisting and causing wrist pain. CONNECTS WIRELESSLY TO PC - The VM4RW includes a USB-A receiver with a very short protrusion so you can avoid knocking it off the side of your laptop or computer. It operates within the 2.4 GHz band. PROVIDES ADJUSTABLE POINTER SPEED & BUTTONS - The VM4RW features 4 LED indicators that allow you to change the pointer speed from a slow speed to a fast speed. You can also configure the 6 buttons to lessen your clicking without releasing your hold. COMES WITH INTUITIVE DRIVERS FOR WINDOWS & MAC - Download the Evoluent Mouse Manager to configure the 6 mouse buttons to suit your needs. The VM4RW is compatible with macOS 10.5-10.14, Windows XP/7/8/10, and Linux. *NOTE: VM4RW is not compatible with PS2 adapters. INCLUDES - Evoluent VM4RW VerticalMouse 4 Right W