Rubberised sides provide improved grip and comfort. Separate on/off switch enables energy-saving use of the mouse. Exactly symmetrical design is suitable for left- and right-handed use. Stowable USB receiver can be transported in the housing to save space. High-resolution optical sensor provides accurate and smooth pointer control dpi switch to change pointer speed. Polymer-coated glide feet ensure smooth mouse movements and trouble-free operation. Switchable sensitivity between 800, 1200 and 1600 dpi.