2.4GHz digital wireless transmission, operation distance is up to 10 meters. built-in mouse memory, no recording is needed after battery replacement. Intelligent power-saving technology, the service life of one alkaline battery is up to six months Intelligent connectivity, no need to code, plug-and-play. Ergonomically designed, comfort grip. Dormant class control and more power-saving hibernation connectionless. 800dpi/1200dpi cursor speed adjustable. Shortcut button can be used to browse the Internet or applications, easily on the toolbar "forward" and "backward" function. Power switch, in the case of not using power off completely. Type: Wireless Mini Mouse Material: ABS Mouse Type: Wireless Optical Mouse DPI: 800DPI/1200DPI Interface: USB RF: 2402MHz-2480MHz       RF Operation Channel: 16, Automatic Frequency Hopping        Rated Voltage: 1.5V Rated Current: 12-20mA        Max. Acceleration: 14ft/Sec        USB: Ver 1.1/2.0       System Support: for Windows 2000/XP/Vista/Linux/Win 7/MAC OS Power Supply: 1 x AAA Battery (Not Included) Features: Adjustable DPI, Portable, 3 Keys, Flexible, Universal, Wireless Connection Size: 8.5cm x 5.3cm x 2.7cm/3.35" x 2.09" x 1.06" (Approx.) Notes: Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Wireless Mini Mouse 1 x 2.4G Launcher Note: 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. Sold by-Minnanxin