Product Description Rechargeable Wireless Mice 2.4G Silent Wireless Mouse 1600dpi RGB LED Backlit Rechargeable Gaming Mouse Ultra Slim Ergonomic Mice for Windows2000/XP/Vista/Linux/7/MAC Features: 1. Engineering design, elegant 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 patterns to enhance the mouse's anti-interference characteristics; 5. any 360 around the angle of use, up to 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/XP/Vista/Linux/7/ and MAC operating system 9. Left and right keys silent design, quieter. Specification: 1. Wireless transmission distance: about 10m 2. Wireless carrier frequency: 2402MHz-2480MHz 3. Wireless working channels: 16, automatic frequency hopping 4. keystroke: 0.8mm 6. Keystroke force: 60-70±10g 7. Key lifetimes: 3 million times Package includes: 1 x wireless mouse 1 x USB Receiver 1x charging cable