Intelligently switch among multiple devices The combo intelligently connects to the working device. They pair multiple devices, and switch among them with ease. They simplify complicated cross-platform use and meet multi-tasking requirements. Switch between Bluetooth 3.0, 4.0 and 2.4G The smart switch between Bluetooth 3.0, 4.0 and 2.4 GHz ensures stable wireless transmission. You can still use the combo regardless of USB port shortage or the loss of receiver. Fully adjustable DPI sensor You can adjust 4 DPI values from 600/1000/1300/1600, which is up to 1600DPI. It can meet the accuracy of different screens. Spill-resistant design Spill-resistant keyboard design, so you do not have to worry about the keyboard malfunctioning after accidental spills. Multimedia hotkeys Multimedia hotkeys give you quick access to functions like media player, homepage, volume adjustment and more.