The keyboard is large and easy to read and type. Long time use will not feel uncomfortable and fatigue. Very suitable for the elderly or people with vision problems. Features: Large type, bold, easy to read and type. Even in dim light, with a backlight design, you can see the letters without turning on the light. Ergonomic design, comfortable non-slip texture. Hands will not feel tired or uncomfortable during long-term use. Use 12 multimedia control keys to help manage your music, web, and video (FN+F1/F2/F3...). Large fonts are ideal for older people or those with vision problems. Specifications: Item type: Keyboard Material: ABS Key number: 104 Interface: USB interface Cable length: 1.5M Support system: windows98/95/NT/ME/2000/XP/Vista/7.0/8.0 FN+LED on-off key: Backlight breathing, getting brighter and darker FN+F1, F2, F3, F4,F5,F6,F7,F8, F9,F10, F11, F12 FN+PD: - Reduce LED backlight brightness FN+PU: + Increase LED backlight brightness Package weight: 752g/1.65pounds Package size: 460*190*35mm/18.1*7.48*1.37inches Package List: 1 * Keyboard