Rapoo MT550 Multi-mode Wireless Optical Mouse - BlackSwitch among multiple connected devices in one click Connect to all your devices with the MT550. It automatically pairs the working device, connects to multiple devices, and easily switches among them in a click of a button. Multi tasking across devices has never been easier. Adjustable DPI high definition sensor As sensitive as you want, you can adapt the MT550 mouse in 4 DPI levels. The mouses optical HD sensor resolution can be toggled between 600