Dual Mode (2.4G + Bluetooth) Switch easily between wireless USB and Bluetooth. Rechargeable & Energy Efficient Long-lasting battery with auto-sleep technology. Silent Click & Ergonomic Design Noise-free buttons with a comfortable, slim build. Adjustable DPI (800/1200/1600) Smooth, customizable cursor control. Red Light Optical Tracking High precision on various surfaces. 8-10m Wireless Range Strong and stable connection. Wide Compatibility Works with Laptops , PCs, and more. LED Light Design Stylish and modern look.