ECOMGEAR(TM) New 2.4G 2.4GHz Optical Gaming Wireless 6 buttons Mouse 1000/1600/2000DPI Black This Wireless Mouse is a good choice for you: 10m Wireless Operation Distance, Ergonomic Design, High Accuracy, High Quality, Modern Design....Ideal for Game, office and home use. 2.4GHz wireless transmission up to 10 meters operating distance. 6 buttons, including Wheel Key, Left Button, Right Button, Page up, Page down, DPI Switcher. Great power saving mode, low power consumption, the service life of one AA Alkaline battery is up to 3 months. ECOMGEAR(TM) is a trademark. All ECOMGEAR? products are exclusively distributed by itself. ECOMGEAR? trademark is protected by US Trademark Law.