How to use USB debugging "by air"? On my PC is installed Android Studio and ADB. I can connect with Android via a USB wire. But in the settings there is a function 



where can I write 0.0.0.0:5555 to connect to a PC by air?
0.0.0.0 is not a valid IP. Mobile carriers don't expose IP addresses for external connection.

Instead, connect to a WiFi network which your PC is also connected to. Then turn on the option, after which you should see a valid local IP address. On your PC, run adb connect your.local.ip.address:5555, and provided that the network is properly set up (e.g. no firewall rules blocking access), you will be wirelessly connected to the device via ADB. Use adb disconnect when you're done with it.

More general info about adb (and how to do it wirelessly even if your device doesn't have that option in Developer Options) is available here.