Dimensions: 4.5 in (115 mm) x 2.9 in (74 mm) x 2.0 in (45 mm)
Technology: Logitech Advanced Optical Tracking
System Requirements: Bluetooth Smart: Windows 10 or later, Windows 8, Mac OS X 10.10 or late, Chrome OS™, Android 5.0 or later, Unifying Receiver: Windows 10 or later, Windows 8, Windows RT, Windows 7, Mac OS X 10.05 or later, Chrome OS™, Internet connection for software download, USB port.