✔️ GREAT FEATURES - The large 1 cm high characters are ideal for people with vision problems and the strong contrast between the black of the keys and the white of the letters prevents you from making typing errors and you typing faster. ✔️ KEYBOARD WITH NUMBER KEYBOARD - This visual comfort keyboard has 105 keys. ✔️ Plug and play – you just need to connect the keyboard cable to the USB socket of your computer to use it, there is no special software to install. ✔️ Compatibility – The keyboard is compatible with Windows XP / Vista / 7 / 8 / 10 and works with both laptops and landline devices.