Note: * There are 3 models Model A,Model B and Model C optional, different model with different appearance, please choose suitable model before purchase *Powered by 1* AA batteries the product does not contain batteries, you need to prepare 1* AA batteries by yourself. Specifications: Item Name:2.4G Wireless Mouse The Max DPI:1600 DPI Ajustable DPI Switch: 800/1200 /1600DPI WiFi Range: 10M Switch Life: 10 Million Times Interface: USB Material: High quality ABS plastic Powered by 1* AA batteries not included Features: 2.4GHz Wireless Connection :This wireless mouse connects with the 2.4G wireless technology via a USB Nano receiverstored on the back of the mouse.Transmission distance can up to 10m/33ft . Just plug and play,no drivers needed Ergonomic Design: With the latest ergonomic design, the wireless mouse perfectly matches the position of each of your fingers. Mini-contoured shape drastically reduces muscle strain by 30%. 3 Adjustable DPI :Choose different DPI computer mouse for different needs-800/1200/1600. For daily life - 800/1200 DPI is enough to meet your needs.For office ,1600 DPI can greatly enhance work efficiency. 6 High Efficient Buttons : There are not only click left and right buttons, but also a DPI adjusting button, scroll wheel and two side buttons. The function of the side buttons is to help you to back or forward when you surf the internet page. Wide Compatibility & Worry free service: This mouse is compatible with almost devices with USB ports and most operating systems such as Windows 10/8/7/XP, Vista Linux and Mac Package Included: 1 x 2.4 GHz Wireless Mouse battery not included 1 x USB receiver Note: *The USB receiver is stored in the battery box of the mouse. *If your computer has a Type-C port, you may need to use a Type-C adapter to connect the mouse to your device. Model A: Model B: