Features: brand new and high quality 2.4G wireless technology provides up to 10m wireless distance, stable transmission. 3 adjustable DPI(1000-1200-1600DPI), easy to adjust movement speed of the mouse cursor, accurate positioning, low delay. Because the battery is not shipped, the package will be opened and the battery will be taken out before delivery. Please make sure you don'for t mind before purchasing. Equipped with USB receiver, plug and for play. Ergonomic design, the mouse curve fits for 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. Specifications: Material:ABS Color: for Grey/Coffee/Green/Red/Blue/Purple/Pink/Light Brown Connection mode: 2.4G wireless DPI level: 1000-1200-1600DPI for Key number: 5 Battery: 1xAA battery(not included) Size: Approx. 10.4 x6.8 x3.8 for cm/4.09x2.68x1.5 inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Wireless Mouse