With micro-precise scrolling, ultra-smooth cursor control and super-long-and-reliable battery power, this compact mouse offers control-and personal style in your choice of color combinations. The micro precision scroll wheel gives you the ultimate navigation experience. Three-year battery life virtually eliminates the hassle of changing batteries. Includes Logitech® Unifying Nano-receiver and advanced optical tracking. Ergonomically designed shape with soft rubber grips. Connector/Port/Interface: USB; Left/Right Hand Use: Left/Right; Mouse Technology: Optical.