Main Features:￠ Buttons: 6 buttons with scroll wheel (Two side-buttons and one DPI button)￠ Ultra-precise scroll wheel￠ Ergonomic shape・ special feel good￠ True 2400DPI pro-gmaing sensor￠ Adjustable resolution feature: 800/1200/1800/2400DPI￠ Forward and backword side buttons￠ Switch life: 8 million cycle￠ The use of up to 60000 hours￠ 16-bit ultra-wide data path￠ 8400FPS frames per second (6.8 megapixels per second)￠ Optical technology works on most surfaces￠ Perfect combination・ positioning accuracy￠ Intelligent connectivity. no need to code・ plug and play￠ High quality・ compact design and measurable weight