Upgrade to smarter scrolling, better comfort, and more productivity with the Logitech Signature M650 Wireless Mouse. The versatile mouse features an adaptive scroll SmartWheel that delivers line-by-line precision, and auto-switches to super-fast free spin mode with the flick of a finger. A choice of sizes for medium, larger and left hands means there's a perfect fit for anyone. Seamless wireless connectivity, customizable side buttons, and a comfort shape keep you comfortably productive hour after hour. Logitech's SilentTouch technology delivers silent clicks to keep you focused. Connector/Port/Interface: Bluetooth; USB; Left/Right Hand Use: Right; Mouse Technology: Optical; Wired/Wireless: Wireless.