Feel comfortable even after hours of tracking with this full-size wireless mouse that has a contoured design and soft rubber side grips. Plug-and-forget nano receiver is small enough to stay in your USB port, which reduces the chances of it getting lost. On/off switch and smart sleep mode work together to help extend battery life. Connector/Port/Interface: USB; Left/Right Hand Use: Left/Right; Mouse Technology: Laser; Wired/Wireless: Wireless.