Upgrade to smarter scrolling, better comfort, & more productivity with the Logitech Signature M650 Wireless Mouse. The versatile mouse features an adaptive scroll SmartWheel that delivers line-by-line precision, & auto-switches to super-fast free spin mode with the flick of a finger. A choice of sizes for medium, larger & left hands means there's a perfect fit for anyone. Seamless wireless connectivity, customizable side buttons, & 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.