Illuminated keys providing perfect readability under limited light conditions Slim flat keyboard with electro luminescent, attractive blue illuminated keys Comfortable size space saving keyboard, perfect to keep your desk clean & tidy Ergonomic design greatly relax arm muscle With 5 hot keys for Internet & Multimedia use Portable shell with strong steel board Multiple language versions are available Appearance: Cambered surface stylish figuration, Luxurious & Elegant Usage: Comfortable, Durable, Deft & Mute position Keystroke lifetime: Over 10000000 times System requirement: Windows 98/2000/NT/ME/XP/VISTA Working temperature: -20ordm; C&-45ordm; C Working humidity: 10%-90% Keystroke pulling power: ≥1kg Key switch elasticity: 55+/-7g Every keyboard in any color is viable