About this product ◆ Advanced optics localization pattern can freely move on any surface (except glass). ◆ High resolution, gaming sensitive response. ◆ 5 million times long service life of microswitch. ◆ High polymer wear-resisting foot pads, 10 times stronger than normal ones. ◆ The natural are design accords with the shape of palms. ◆ High/Full-speed USB interface， 480MBPS of the transmission rate for each second. ◆ Games, multimedia control mode switch. ◆ Four DPI transmission.