SILENT CLICK: Left and right button super silent click design helps build a quiet atmosphere, keeping you focused without disturbing others. Perfect ergonomic shape with smooth surface naturally fits your hand, providing all-day comfort without any fatigue. 3 DPI LEVEL ADJUSTABLE: 3 adjustable DPI levels available from 800/1200/1600 DPI. You can easily change the DPI level to get high accuracy and consistent response. COOL LED LIGHT: 4 soothing LED colors switch alternately, cannot be set to a specific color, it cannot be turned off. Product Selling Points: 1. Connection Method: 2.4G Wireless 2. Rechargeable: Built-in rechargeable battery 3. Accurate Tracking: Professional IC positioning accuracy 4. 10M Wireless Receiving Distance 5. Third Gear DPI Adjustment Design 6. Silent Button: Silent button: 5 million silent design, more suitable for office use. 7. High Resolution: Max 1600 DPI high resolution for smooth movement 8. Metal sump design, high-quality wireless mouse, stylish, easy to carry. Three-level energy saving mode: 1): Three seconds into the first sleep light flashing continuously 2): 1 minute or so to enter the secondary sleep, intermittent flashing light 3): 8 minutes or so, go to level 3 sleep, the light goes out ERGONOMIC DESIGN: K85 with symmetrical and streamlined provides a comfortable claw grip design, long-term use without fatigue. Excellent wired PC gaming mouse for casual gamers. UNIVERSAL COMPATIBILITY: This wired gaming mouse is widely compatible with most systems that have a USB port, including Windows XP, Windows Vista, Win7/8.10, Mac OS. Just plug and play, no additional driver required.