This vertical ambidextrous mouse comes with a patented switch and fold mechanism which allows you to operate the Twister mouse with your right hand one moment, ad with your left the next. By switching between your left and right hand, you distribute the load between the two and prevent overloading one hand. The mouse is also foldable making it easy to transport allowing you to work ergonomically wherever you are. In addition, the integrated break indicator software controls LEDs s you know when it's time to take a break. It analyses actual mouse use and shows you if you are working healthily. The Twister mouse can be connected via Bluetooth or cable and once the battery is fully charged, it will last an average of 2 weeks.