KENSINGTON SlimBlade Pro K72080WW Wireless Optical Trackball Black, Black

Rechargeable battery provides 4 months battery life with a single charge via USB-C port and wired connection options for maximum flexibility Includes choice of Bluetooth, 2.4GHz wireless and wired connections. Compatible with Bluetooth BT3.0/BT5.0. Features 2.4GHz wireless dongle (USB-A with USB-C to USB -A adapter) and 1.5m USB-C to USB-A charging cable Large 55mm trackball lets users scroll up and down web pages and documents with quick precision via a simple twist Low-profile shape allows all-day comfort for both right and left-handed users, takes up less desk space than a mouse and is more comfortable during extended use since there is less arm movement Dual sensors accurately track the ball, giving users precise cursor control that requires less hand and wrist movement. Provides highly accurate and responsive cursor tracking and scrolling