1) Membrane key switch, noise free
2) Key stroke life time: 10,000,000 cycles
3) Multiple language versions available
4) Compatible with Windows NT / 98 / ME / 2000 / XP
5) High-quality
6) 10 multimedia hot keys, and programmable keys available.
7) Laser printed keys, never fade
8) Waterproof designed.
9) USB and PS/2 available.