Specifications: The wireless rechargeable mouse has high performance of anti-interference. Professional optical positioning technology makes the positioning more accurate. Ergonomic design makes it more comfortable to use. With 500mAh large capacity battery, it can work for a long time. Mini compact size is suitable for carrying outside. It is compatible for Windows 2000/XP/Vista/Linux/7/8 and for Mac OS. Item Name: Wireless Mouse Material: ABS Model: M215 Charging Port: USB Optical Resolution: 1000/1600/2400/3500DPI (Adjustable) Wireless Transmission Frequency: 2.4GHz Number of Buttons: 6 Game Chip: PAN3212 Optical IC Compatible Systems: for Windows 2000/XP/Vista/Linux/7/8 and for Mac OS Features: Wireless, Rechargeable, Computer Accessory Size: 12.5cm x 6.5cm x 4cm/4.92" x 2.56" x 1.57" (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 USB Charging Cable 1 x User Manual