| This Vertical mouse has a control bar that can be moved 'forward, backward, left, right, down', corresponding to the W, S, A, D, and space keys of the keyboard in the default setting (all buttons can be programmed). Operated by the thumb, it is more convenient than the keyboard. Ergonomic Vertical Design. Unlike those traditional ones which strain wrist and arm over time, causing great pain. The vertical design provides better support for your forearm minimizing wrist pain that can come from twi | |
