Learn to scroll more intelligently: Line-by-line accuracy for documents and lightning-fast scrolling for lengthy web pages are both possible with the Logitech Signature M650 Wireless Mouse; just flick the SmartWheel to switch between modes. The ideal arrangement for your hand: Small to medium-sized hands will fit this mouse the best thanks to its comfortable design. Boost your level of comfort: Long hours of comfort are made possible by this work mouse's contoured shape, soft thumb area, and rubber side grips that keep your hand firmly in place. Connect however you choose: Use the Logi Bolt USB receiver or Bluetooth Low Energy to quickly connect this cordless mouse. More concentration, less noise: The Logitech Signature M650 is a silent mouse that lets you enjoy working at home or in the office.