Features:1. Large thickened font. Easy to read and type, even in dim lighting. To reduce eye strain and headache.2. Unique backlight design, you can see letters without turning on the lights.3. Ergonomic design, comfortable and non-slip texture. Your hands will not feel uncomfortable and tired during long-term use.4. Use 12 multimedia controls to help manage your music, web and video (FN+F1/F2/F3...).5. The large font design is ideal for older people, people with vision problems, or people who just want to see the keyboard and not feel nervous.Specifications:Material: ABSNumber of buttons: 104Interface: USB interfaceCable length: 1.5MLuminous: whiteKey life: 10 million times or moreSize : Approx. 450*160*25mm/17.72*6.3*0.98inchSupport system :for windowns98/95/NT/ME/2000/XP/Vista/7.0/8.0Multimedia button operation:FN button + LED switch key: backlight breathing, fade outFN button + F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12FN button + PD button: - Reduce the brightness of the LED backlightFN button + PU button: + Increase LED backlight brightnessPackage List:1 * Keyboard