Logitech Wireless Mouse M315 Nano Blades of Grass Advanced optical technology For pinpoint accuracy on almost any surface. 2.4GHz wireless technology Allows freedom of movement and fast data transmission. Contoured design With soft rubber grips and a smooth scroll wheel for comfortable left- or right-handed use. 2-button design For easy navigation through files or programs. Plug-and-play design Simply plug the nano receiver into an available USB port.