The M300 Silent Mouse is a wireless multi-mode mouse with various features. The silent switches reduce click sounds. The intelligent switch between Bluetooth 3.0, 4.0, and 2.4 GHz enables stable wireless transmission. You can use your mouse without a free USB port and without a receiver. The M300 connects intelligently to the active device, allowing it to connect to up to 3 devices simultaneously and switch effortlessly between them. It simplifies complex cross-platform usage and meets multitasking requirements. You can adjust 4 DPI settings of 600/1000/1300/1600 to achieve accuracy on different screens, up to 1600 DPI. With Rapoo's latest energy-saving technologies, you can use the mouse for up to 9 months without changing the batteries.