•With convenient wireless receiver storage
•Radio frequency and optical technology
•Free 360-degree use within 1.5m radius
•Cable type: USB
•Automatically power-down sleep function
•High resolution: 800DPI
•Switch life: 1 million cycles
•Zoom in/out functions mini USB receiver and charge 2 in 1
•All kinds of injection colors or rubber coating colors available
•Works on any surface except glass