SMK-LINK VP6364 Black USB RF Wireless Ultra-Mini Touchpad Keyboard Mouse Included: Yes Palm Rest: N/A Power Supply: 2 AA Batteries Distance: 33 feet Hand Orientation: Both Hands System Requirement: Windows XP with MCE, Vista with MCE, Windows 7 Linux OS (some MCE media functions may not function) 1 available USB port Dimensions: 5.3 x 3.8 x 1.2 inch