The Logickeyboard XLPrint Bluetooth Black on White PC US Keyboard is designed for those who are visually impaired or need a bit more help with their eyesight. It helps to minimize typing errors and reduce eye strain. Compatible with Windows 7-10 and iPad, this Type X-switch keyboard features large keys with easy-to-read letters, in US English, that are enhanced with high-contrast markings. It is also compact, light, and portable, and employs Bluetooth 3.0 connectivity with an operating distance of up to 32.8'. Power is provided by two included AAA batteries.