Technical DetailsBrand‎LogitechManufacturer‎Logitech, Logitech India Customer Care Toll free Number 1800 572 4730 (9:00am to 6:00pm -Mon- Fri)Model‎910-006247Model Name‎M650 L- GraphiteProduct Dimensions‎41.5 x 65.6 x 118.2 cm; 111 GramsBatteries‎1 Lithium Ion batteries required. (included)Item model number‎910-006247Operating System‎Linux, Mac OS X 10.0 Cheetah, Windows 10Hardware Platform‎PC, Linux, MacCompatible Devices‎Laptop, Personal ComputerSpecial Features‎Wireless, Ergonomic DesignNumber Of Items‎1Batteries Included‎YesBatteries Required‎YesBattery Cell Composition‎AlkalineConnector Type‎BluetoothManufacturer‎LogitechCountry of Origin‎ChinaItem Weight‎111 g From the manufacturer COMFORT, UPGRADEDChoose between two sizes for a perfect fit, and work long hours in comfort with a contoured shape and soft-to-the-touch thumb area. CHOOSE YOUR SIZEChoose the right design for you — whether you have smaller or larger hands — for a perfect fit. Not sure which mouse is right for you? Check out our sizing guide.LOGITECH SMARTWHEELGet line-by-line precision for documents — and super-fast scrolling for long web pages. Automatically switch modes with the flick of your finger.SILENT CLICKSEnjoy 90% less click noise thanks to Logitech`s SilentTouch technology. Less noise means more focus on the task at hand.CONNECT THE WAY YOU LIKEGet a strong, reliable wireless connection from up to 10 meters away. Enjoy super easy, no-hassle connectivity every time.CUSTOMIZABLE SIDE BUTTONSCustomize the side buttons for your favorite shortcuts with Logitech Options Plus to work faster and more efficiently — like back/forward or copy/paste.