2.4GHz Wireless Optical Mouse 4 Keys Computer PC Mice USB 2.0 Ergonomically Design Ultra Slim Fashion Mouse. 2.4GHz Wireless MINI USB Ergonomic Receiver Gaming Mouse 1600DPI 3 keys Game Mouse for Laptop Notebook PC Gamer support ergonomics, it is comfortable to use the mice Speed, as soon as possible to lift the masses of the difficult problems Wireless transmission Portable and weight light, very convenient to carry and store Mouse size: 100-120mm) With the computer connection: wireless Applicable models: Notebook computers Photoelectric resolution: 1600dpi (dpi) Number of keys: 3 key Interface: USB Wireless transmission frequency: 2.4GHz Resolution adjustable: third gear and below Material: ABS plastic