Cdycam Large Print LED Backlit Vision Light up USB Wired Ergonomic Gaming Backlight Keyboard It is LED backlight USB wired PC keyboard (Press SL key to open /close backlight) Large print, bold fonts ,Easy to read and type even in dim lightening to reduce eyestrain and headaches Ergonomic design, comfortable non-slip texture, you hands will not feel uncomfortable and tired in the long time use With 12 multimedia control keys, to help manage your music, web, and video (FN+F1/F2/F3) Comparable with Windows7, Windows8 Windows10, Windows XP