1. Resolution hardware: 1000dpi. 2. Comfortable shape for better handling. 3. Optical technology tracking,no cleaning is required. 4. Compact design with comfortable firm grip. 5. Working within 10 meters. 6. Button strokers life: 3 million cycles. 7. Moving life: 480km. 8. Easy to install,plug & play. 9. Smart energy-saving automatically. 10. Required aaax2 battery for mouse a quality product from frontech.