Jelly Comb Ergonomic Bluetooth Mouse, Vertical Mouse 2400DPI Multi-Device (BT1 + BT2 + 2.4G Wireless), Bluetooth Vertical Mouse with USB Receiver for Laptop PC/Mac/iPad OS/Windows, Black

?Why Choose Jelly Comb Vertical Mouse? The natural resting position of the wrist and forearm is the ?thumbs-up? position. This is a contrast to the position of the standard flat mouse where you rotate your forearm to get the hand in a palm down position (pronation). One of the benefits of a vertical mouse is it can prevent pronation and carpal tunnel syndrome.?ONE MOUSE, THREE DEVICES Dual-Blue...