Place your hands and arms naturally and comfortably with the Microsoft Natural Ergonomic Keyboard 4000. The improved split design encourages a more natural hand; wrist; and forearm position and its new curved key layout makes keys easier to reach. The Zoom Slider lets you zoom in for close-ups of Web pages; images; and more - with just the touch of a finger. And 5 customizable My Favorites keys give you instant access to the folders; files; and Web pages you use most. Keyboard/Keypad Connectivity Technology: Cable Hot Keys: My Favorites; Email; Internet; Search; Back; Forward; Calculator; Home Screen; Mute; Play/Pause; Volume Up; Volume Down Keys Layout: QWERTY Localization: English (North America) Keyboard/Keypad Host Interface: USB Keyboard/Keypad Height: 3.26 Keyboard/Keypad Width: 19.80 Keyboard/Keypad Depth: 10.30 Weight (Approximate): 2.87 lb Platform Supported: PC; Mac Device Supported: Computer Green Compliant: Yes Green Compliance Certificate/Authority: RoHS; WEEE; REACH Country of Origin: China Limited Warranty: 3 Year. Genuine Imported Products from USA. Prices include Import Custom Duties and Taxes.