Check the listing for details. VicTsing Wireless Gaming Mouse Ergonomic 5 Adjustable DPI Levels 6 Buttons Black. Condition: New. Listed at 8.98 USD. Bullet points: 5 DPI switch and customized function: no need any driver, plug and play. 5 DPI switch ( 800, 1200, 1600, 2000, 2400 ) to change the speed of mouse freely.2.4Gwireless transmission: 2.4GHz Wireless - A more secure and precise experience than the traditional FM radio system.Long battery life and auto energy-saving sleeping mode: Up to 15 months of battery life virtually eliminates the need to change batteries.Feel-good design: Contoured shape and textured rubber grips keep your hand comfortable even after long hours.Description: This is a new high-grade Wireless Mouse with 2400 DPI 5 adjustable levels 6 Buttons. Features reliability, ease-of-use, and user comfort, this wireless mouse gives you fast data transmission and no delay or dropouts. You deserve it!Energy-saving If mouse is not used for over 8 minutes, it will turn to power saving mode to save energy.2.4 G Wireless Transmission Technology Enjoy the fast data transmission at the convenience of the wireless technology.Compact Receiver The wireless tiny receiver can be inserted into the slot next to the battery slot, allowing ease of storage when not used.Wide Compatibility Compatible with most system including Windows, Mac and Linux.Comfortable Hand Feeling With special processing and advanced material, this wireless mouse makes you feel comfortable.How to set CPI: Press CPI button, if the red indicator light flashes once, its CPI is 800; Press CPI button, if the red indicator light flashes twice, its CPI is 1200 Specification: Color: blackMouse size: 4.05x2.76x1.54in or 103.5X 70.5 X 38.6mmWeight: 2.5oz/71gNumber of the Key: 6 ButtonsDPI: 800-1200-1600-2000-2400Power Source: 1*PCS AA Battery (Not included) Package included: 1 X mouse1 X USB receiver