Item Type: Large Print Keyboard_x000D_ Material: ABS_x000D_ Number Of Keys: 104_x000D_ Interface Type: Usb_x000D_ Keyboard Strokes: 10 Million Times_x000D_ Support System: for Windows98 95 NT ME 2000 XP Vista 7.0 8.01Large Bold Letters: Slim design, easy to read and type, comfortable to touch, not easy to misuse, elegant appearance and durable. 2Relieves Eyestrain: Protects eyesight and is easily recognizable even in dim lighting to reduce eye strain and headaches. 3Adjustable Backlight: Uniform and soft light transmission, no glare and eye protection, the keyboard backlight can be turned off and the brightness can be adjusted. 4Strong Compatibility: Plug and play, rich multimedia keys, office and entertainment, fully compatible with notebook computers, desktop computers, smart TVs, etc. 5Applicability: Ideal for the elderly, visually impaired, schools, special needs departments and libraries, etc.1 x Keyboard