Specifications Resolution1200dpi TrackingOptical InterfaceUSB Button strokes life3 million cycles Voltage5V,100mA max OS compatibility Windows XP / Vista / 7 / 8 / 10, Mac OS or Android OS Dimension111 x 61 x 37mm (W x D x H) Box dimension (W x H x D)120 x 160 x 45 mm Net. weight 70.3gCountry of OriginChina