[High-Efficiency Multiple Working Modes] - 3 modes mouse, with dual bluetooth 5.1 modes and 2.4G wireless technology. This bluetooth wireless mouse only requires one switch to support connect three devices so that you can switch between them easily. [4 Adjustable DPI Levels] - This mouse includes 4 levels of adjustable DPI (2400/1600/1200/800), so you can easily change cursor sensitivity depending on your relevant activity, improving efficiency.