3pcs 2.4G Wireless Handheld Air Trackball Mouse - Thumb Controlled, USB (Black)

Pack of 3 compact 2.4G wireless finger trackball mice built for off-table, handheld use. The thumb-controlled trackball and dolphin-shaped body offer a comfortable grip for laptop users, while the left and right clickers make the device ambidextrous. Designed to reduce strain on palm joints and muscles from prolonged mouse use, it also enables you to sit farther from the monitor to help lower radiation exposure and eye fatigue. USB plug-and-play — no drivers or software required.