Dual-Mode Wireless & Wide Compatibility - Supports 2.4GHz USB receiver and BT dual-mode connection, offering stable wireless performance with up to 10m / 33ft range. The nano receiver is plug-and-play, no driver needed. Ideal for laptops, desktops, and tablets at home or office Low Power Sensor - Built with KA8G2 optical sensor, BM4162 mouse reduces energy consumption while maintaining smooth tracking. It minimizes frequent charging and ensures reliable performance for daily work and long usage sessions 5 Adjustable DPI - Easily switch between 5 DPI levels (800/1200/1600/2400/4000) to match different tasks and screen sizes. The DPI indicator light clearly shows the current setting, allowing quick adjustment and precise cursor control for office work, browsing, and productivity Smart Power Saving - Up to 80 hours in 2.4GHz mode and 100 hours in BT mode. Built-in smart power-saving and auto sleep mode reduce power consumption when idle for extended all-day use Rechargeable Battery & Port