Specifications: The wireless mouse is rechargeable and wireless, which is convenient to use. With the ergonomic design, it is comfortable to hold it. It has ultra-precision roller, which brings you excellent using experience. Item Name: Wireless Mouse Material: ABS DPI: 800/1200/1600 dpi Compatible Systems: For Windows XP/Vista/Win 7/Win 8/ME/2000, for Mac OS Charging Time: 2-3 Hours Buttons: 6 Buttons with Scroll Wheel (2 Side Buttons, 1 DPI Button) Service Life: 10 Million Cycles Features: Wireless, Rechargeable, Plug and Play Size: 13.5cm x 7.2cm x 4.5cm/5.31" x 2.84" x 1.77" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Wireless Mouse 1 x USB Receiver 1 x Charging Cable The wireless mouse is rechargeable and wireless, which is convenient to use. With the ergonomic design, it is comfortable to hold it. It has ultra-precision roller, which brings you excellent using experience. This product is economical, affordable and durable for most people. This product is not only as good and cheap as other manufacturers' products, but also has its own unique advantages.