Nulea M501 Wireless Trackball Mouse

Nulea M501 Wireless Trackball Mouse Ergonomic Design with Smooth Thumb Control:  Move your cursor by the smooth computer mouse roller ball instead of moving your wrist and arm. Let the easy and smooth thumb control help you reduce your muscle stress. The optimal angle of the trackball mouse for carpal tunnel allows you to keep your palm in a natural position for all-day comfort. Precise Tracking with Adjustable DPI: Nulea wireless trackball mouse provides precise cursor movement for exceptional accuracy and control. With the smooth trackball, you can enhance your productivity on the go using a ball mouse on nearly any surface in any workplace. Especially on the narrow space, such as the messy desktop, couch, bed, small writing board on a chair, etc. True Wireless Freedom: This Bluetooth ball mouse connects to up to 3 devices via either Bluetooth or a USB dongle. Switch between them easily using the button on the bottom. Kindly reminder: the 2.4G USB receiver is stored at the bottom of