1.Plug and Play: No Need Personal Hotspot/WiFi, Enjoy to sync cast your iPhone/ iPad/ Android screen to PC 2.DouWan offers a zero-lag, seamless connection from mobile devices to PC. Enjoy smooth 4K ultra-clear video quality with 60-100 ultra-high framerate. 3.Record and live stream 4K gameplay while play your mobile games. 4.Charging While Mirroring : Watch videos and play your mobile games on the big screen with no lag, while charging your phone at the same time. 5.Use your phone as a PC HD camera, make use of the best camera you already have with you.