Coromose 2.4Ghz Mini portable Wireless Optical Gaming Mouse For PC Laptop 2.4Ghz Mini portable Wireless Optical Gaming Mouse For PC Laptop Black Wireless transmission, the longest sensing distance up to 10-15 meters Portable and weight light, very convenient to carry and store Power switch for save power With 6 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing