Silent Wireless Mouse 2.4G Ergonomic 1600DPI Optical Computer Mouse with USB Receiver for PC Laptop BlueKey Features...Ergonomic design, comfortable feel, stylish three-dimensional DPI adjustment, 800/1200/1600, suitable for office games.Professional optical positioning technology for more precise positioning.Smart mini receiver, USB interface, plug and play, up to 10 meters of control distance.Ma..