Features: 2.4G wireless technology provides up to 10m wireless distance, stable transmission. 3 adjustable DPI(1000-1200-1600DPI), easy to adjust the movement speed of the mouse cursor, accurate positioning, low delay. Ergonomic design, the mouse curve fits palm, comfortable to use. It will enter into automatic sleep mode when not used for 5 minutes, energy saving and low power consumption. Low click noise, no need to worry about disturbing others. Equipped with USB receiver, plug and play. Specification: Brand: Mofii Model: M3 Color: Pink/Blue/Purple/Light Brown(optional) Connection mode: 2.4G wireless DPI level: 1000-1200-1600DPI Key number: 5 Supported system: Win7/Win8/Win10 Battery: 1*AA battery(not included) Item size: 10.4 * 6.8 * 3.8cm /4.09 * 2.68 * 1.5in Item weight: Approx. 90g /3.17oz Packing list: 1 * Mouse 1 * User manual