Kensington 64373 Wireless Optical Desktop with USB/PS2 Keyboard, Mouse and Wrist Rest (PC) Wireless multimedia keyboard and optical mouse set with Quick RTF (TM) technology eliminates tangled wires, messy workspace Keyboard has 19 multimedia and Internet shortcut keys control functions with one-button ease. Wireless optical mouse features three programmable buttons and a scroll wheel for ease of use. Mouse has DiamondEye(TM) optical technology to provide fast, precise tracking. Wrist rest included for comfortable computing.