... to install,its ready to use right out the box4,Color:according to the customer5,Multi-language available6,compatible with Windows/98 ... when use it.7) Long time for use for Keyboard and mouse8)Comfortable ultra-low-keycap, very close to fingertips,clear ... USB port, convient for use, Anti-Static,Anti-Electromagnetic interference the cheaper keyboard and mouse combo ( 2 in 1 )