Features: 1. Engineering design, stylish appearance and comfortable feel. 2. Optical positioning, positioning is more accurate. 3. Smart mini receiver, automatic connection, no need for complicated code matching. 4. Up to 16 million ID coding designs to enhance the anti-interference characteristics of the mouse 5.Any 360 around the use angle, as far as the control distance of about 10 meters 6. Circuit management design, making the mouse more power-saving 7. Resolution 800-1600dpi adjustable frequency, enjoy your wireless free space 8. System requirements: Windows2000 or XP or Vista or Linux or 7 or and MAC operating system 9. Silent design of left and right keys, more quiet. Specification: Wireless transmission distance: about 10m Wireless carrier frequency: 2402MHz-2480MHz Wireless working channels: 16, automatic frequency hopping Key stroke: 0.8mm Keystroke force: 60-70¡À10g Key life times: 3 million times Package Includes: 1 x Wireless Mouse 1 x USB Receiver 1 x Charging Cable