Description: Stable Connection: Stylish appearance and comfortable hand feeling. 2.4G technology provides stable and reliable connection, effective up to 10 meters of range, with outstanding anti-interference ability. Widely Used: Mute mouse clicks, suitable for office, gaming Internet cafes, library and other occasions. System requirements: Windows2000/XP/Vista/Linux/7/ and MAC operating system. Requires two AA batteries (not included) Adjustable DPI: Optical positioning, more accurate positioning. Resolution 800-1600dpi adjustable frequency, enjoy your wireless free space; Portable: Fashionable slim, it can be carried easily in a backpack or pocket, and use it wherever you go. Specification: 1. Wireless transmission distance: 10m 2. Wireless carrier frequency: 2402MHz-2480MHz 3. Wireless working channel: 16, automatic frequency hopping 4. Rated working current: 8-15mA@3V 5. Key stroke: 0.8mm 6. Button strength: 60-70±10g Size Chart: 95x40x65mm/3.74x1.57x2.56inch Package Includes: 1 Piece Wireless Mouse 1 Piece Receiver Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!