Specifications: With ergonomic design and stylish appearance, the wireless mouse is comfortable to grip. Professional optical positioning technology makes positioning more accurate. There is no need for complicated code because it is a intelligent mini receiver and has automatic connection function. You can use it with any 360 angle and it has a long control distance of 8 to 10 meters or more. Unique intelligent circuit management design makes the mouse smarter and saves electricity. Resolution 800-1600dpi adjustable frequency enable you to enjoy your wireless free space. It is suitable for Windows2000/XP/Vista/ for Linux/7/ and for MAC operating system. Item Name: Wireless Mouse Material: Plastic Optical Resolution: 1000dpi Number of Keys: 3 Interface: USB Wireless Transmission Frequency: 2.4GHz Battery: 2 x AAA Batteries (Not Included) Features: Wireless, Ergonomic Design, Stylish, Intelligent Size: 11.5cm x 6cm x 2.2cm/4.53" x 2.36" x 0.87" (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