Koolertron Quiet Design Waterproof LED Backlit USB Wired Gaming Computer Keyboards USB 2.0 interface, 104 illuminated keys Responsive keys, compact, quiet design, and feel good Anti-static, anti-electromagnetic interference and waterproof Can use in the night without turning the light on, gives out green fluorescent light in the night, turned on by button Compatible with: Windows XP/ Vista/ win7/ Mac/ IBM PC