The LINDY 5 Button USB (Universal Serial Bus) Mouse means that you can assign common mouse tasks such as close, back, copy & paste, minimise & even opening Microsoft Office programs their own hot-key control button*. By assigning your daily mouse actions their own control buttons you can save time from looking for & then clicking GUI controls, speed up repetitive tasks & improve your overall operational efficiency.* Note: Requires the installation of driver software to customise mouse controls. No support for legacy PS/2 connections.