This vertical mouse is ambidextrous, so it is suitable for both left- and right-handed people. Thanks to the patented switch & fold system, the Twister can be changed from a left-handed to a right-handed mouse and vice versa with one move. By regularly alternating between your left and right hand, you distribute the load on both hands and prevent annoying complaints such as RSI. In addition, the mouse is foldable, so it is easy to take with you. So you can work ergonomically anywhere. The Twister mouse also helps you remember when it is time for a short break. The LED indicator is controlled by our Break software and indicates just how healthy you are working, based on actual mouse use. This mouse can be used either Bluetooth or wired. The total battery time of the mouse after fully charging is up to 2 months (with average use).