Product Features 5 DPI Switch and Customized Function: no need any driver, plug and play. 5 adjustable DPI level ( 800, 1200, 1600, 2000, 2400) to change the speed of mouse freely. 2.4G Two-way Wireless Transmission Technology. More secure and precise, the transmission distance can reach to 10 meters(approx 30ft). Quiet Button Design: Left and right buttons produce little noise when you click them. Perfect for public places such as offices, libraries, dormitories, internet Cafes where you do not want disturb others or interrupt your concentration. Advanced Energy-saving Chip. Multi-stage power saving mode, less power consumption. There is a button at the bottom of the mouse, three options: ON, OFF, ON/light. Put it at ON/light, the LED backlight will light up. The cursor performs stably. With strong adaptive surface ability, this wireless mouse works fine on many surfaces. Compatible Systems: Windows XP/Vista/Win7/Win8/Win10/ME/2000/Mac10.x, etc. This is a new high-grade Wireless Mouse with 5-level adjustable DPI & 7 Buttons. Features reliability, ease-of-use, and user comfort, this wireless mouse gives you fast data transmission and no delay or dropouts. Power Saving Mode and Power Switch off: If mouse stays out of work for 8 minutes, it will turn to power saving mode, press any button to restart it.If you turn off PC or take out Nano receiver from USB port, press any button or move the mouse to enter the power saving mode. Ergonomic Design: comfortable and great hand-feeling, can be used for a long time without fatigue. Compact Receiver: The wireless tiny receiver can be inserted into the slot next to the battery slot, allowing ease of storage when not used. Solid Storage CaseThe plastic storage case is robust and solid enough to protect your mouse when you do not use it. Product Specification Type Gaming Wireless Mouse Connectivity Wireless Interface USB Press-key Quantity 7 Buttons(including scroll wheel) Power Source 1 x AA Battery(Not included) Adjustable Resolution 800, 1200, 1600, 2000, 2400DPI Cordless Carrier Frequency 2402MHz-2480MHz Feature 5 Adjustable DPI Switch, Quiet Button, Advanced Energy-saving Chip Package Included 1 x Wireless Mouse 1 x USB Receiver Location Descriptions In order to improve buyer's purchasing experience and let the buyer receive items as soon as possible, we currently set four warehouses in diffirent cities of United States : one in Fremont, California; one in CITY OF INDUSTRY, California; one in Whippany, New Jersey; one in Monroe Township, New Jersey. When the order is generated, we would send the item to the buyer from the nearest warehouse with sufficient inventory to the order receiving address. Hope you could get your item soon,if you have any problem,please contact us by email. Thanks for your understanding and support in advance!