Stylish & Clean white wireless multimedia keyboard. User can scroll, move between programs, go back, forward, home and refresh on a browser with one touch of a button.System Requirements:Mac OS 9.2 or Mac OS X v10.1 and v10.2.Available USB port.Specifications:Keyboard Dimensions: W 19.5" x L 10" x H 1.3"Receiver Dimensions: W 2.3" x L 3.2" x H 1.1"Keyboard Weight: 2lbsReceiver Weight: 3.3oz3 year manufacturer warranty.