Ergonomic Design: AGR certified vertical mouse. Brings hand and wrist into a natural position, prevents RSI complaints. Round shape and support surfaces provide optimal support. With Led Pause Indicator: Prevent complaints with short breaks. The mouse works with patented Break software and indicates with LED colour signals when it is time to take a break. This Break software has been awarded the Benelux Office Award '21. Silent Mouse: Thanks to the silent buttons, loud clicking noises no longer bother you. Useful in the office or to not disturb fellow travellers. With Bluetooth Connection: This Bluetooth 5.0 mouse realises easy switching between 3 devices. Rechargeable via USB cable. It can last up to 500hours use after a single full charge. Adjustable Buttons and Compatible: the mouse buttons can be personalised. Adjustable DPI. Compatible with Windows 7/8/10/XP, Mac OS X 10.4 and Linux and suitable for desktop, laptop, PC and MacBook.