Brand: Logitech Wireless range: 10 meters Keyboard: 10-Key Number pad Music Controls Up to 5 million keystrokes (excludes number lock key) Key type: low profile Mouse: Sensor technology: Smooth Optical tracking Number of buttons: 3 (Left/Right-click, Middle click) Scrolling: line-by-line Scroll Wheel: Yes, optical SYSTEM REQUIREMENTS: Windows® Vista, Windows XP, Windows 7, Windows 8, Windows 10