SILVER STORM Rechargeable Wireless Scroll Wheel Mouse is the original mouse that is washable and SILVERPROOF protected. 2.4 GHz wireless connection with built-in wireless Nano-USB receiver. Connectivity A single compact USB dongle connects the Logitech MK540 keyboard and the supplied mouse via 2.4 GHz wireless RF signals. Both the keyboard and the mouse came alive the moment I connected the USB dongle to my PC. No drivers are required. You can connect up to six compatible devices to a single receiver so you can connect wirelessly to your keyboard and mouse. In the office or on the move. Since technology has been mastered most wireless mice have integrated receivers that connect to an external input on a computer and are very small. For example you can enter the scroll button to do a dozen tasks switch from apps start windows shut down windows or even turn off the PC.Writing Sensor The Logitech MK540 wide keypad keyboard has a slightly shaped and shaped design that provides easy detection and a high quality feel. Be more appropriate on the top pushbutton moves resolution instantly on 800 1200 and 1600 dpi applications including routine data processing tasks or computer games and editing that require a nice touch. Technical data is collected for the products supported by this tool and is used to identify products provide relevant solutions and automatically update this tool to improve our products. Solutions services and your experience as Customer. The Logitech MK540 keyboard with the accompanying unse ambidextrous mouse has a rubbery mood to the sides a subtle bumpy scroll wheel and smooth sliding ensuring smooth scrolling the mouse comes as built-in components that are connected to the mouse input comes as a separate card installed in one of the additional slots in data rs and the third type of receiver is a separate device that is connected to a cable directly to the peripheral input of the computer connected.