Hot keys provide quick, direct access to programs, files or commands The operation of hot keys can increase your productivity as it can save the movements between keyboard and mouse User-friendly design for anti-RSI repetitive stress injure New concept for interactive relationship between keyboard and mouse Up to 70% of time and work saving on typing and movements between keyboard and mouse Direct access to frequently used applications, tasks and functions Direct access to Euro dollar sign PS/2 and PS/2 to USB converter or USB and USB to PS/2 adapter (combo adapter) available CE and FCC approvals Office function F Enhance USB port E Scroll wheel W Disco light D (red/blue light) USB connector + USB to PS2 adapter C (USB combo) Package: Generic gift box: 10 pieces/carton 20-foot container: 5,500 pieces Luxurious package: 10 pieces/carton 20-foot container: 4,700 pieces