The Kensington SlimBlade™ Pro Trackball combines precision, comfort and wireless convenience in an advanced controller with a sleek ergonomic design, suitable for both left and right-handed users. Includes a choice of Bluetooth, 2.4 GHz wireless and wired connection options. Rechargeable battery provides up to 4 months of capacity. The convenient, finger-operated trackball features dual-sensor scrolling option by rotating the ball for quick navigation. Takes up less space on the desk than a mouse and is more comfortable for extended use because there is less arm and wrist movement. Optical tracking technology delivers superior precision for higher productivity. Free KensingtonWorks™ software lets you customize the buttons, cursor and scroll speed. Plug & play installation Compatible with Windows and macOS.