Scroll smarter: With Logitech Signature M650 Wireless Mouse you get line-by-line precision for documents and super-fast scrolling for long web pages; simply switch modes with a flick of the SmartWheel. The optimal fit for your hand: This comfortable mouse is designed for small-to-medium sized hands, for the optimal fit. Connect the way you like: Connect this cordless computer mouse in an instant via Bluetooth Low Energy or Logi Bolt USB receiver. Customizable side buttons: Customize the side buttons on the computer mouse with Logitech Options+, available on Windows and macOS, to your favorite shortcuts – like back/forward or copy/paste.