100% brand new and high quality Truly support the human engineering、 protect your wrist in your office Suitable as a gift for your friends and yourself 3 blocks of optical resolution designed for you to switch Lateral pressure type button design is soft and comfortable for your finger Item Type: Wired Optical Mouse Suitable Equipment: Laptop Optical Resolution: 1000-1600-600dpi Number-Key: 6 Keys Connector: USB Working Voltage: 5V Working Current: 50mA Standby Current: 15mA Cable Length: 1.6m/62.9in Cable Size: 3.0mm/0.12in(¦Õ) Size: 13.5¡Á10¡Á8.7cm/ 5.31¡Á3.94¡Á3.42in(L¡ÁW¡ÁH) Weight: 178g Package Included: 1¡ÁWired Optical Mouse