ADB over WiFi:
1. Connect device via USB and make sure debugging is working, then run:
adb tcpip 5555
adb connect <DEVICE_IP_ADDRESS>:5555
2. Disconnect USB and proceed with wireless debugging.
3. When you're done and want to switch back to USB debugging, run:
adb -s <DEVICE_IP_ADDRESS>:5555
To find the IP address of your device, go to Settings > Wi-Fi > Advanced > IP Address on your device or run adb shell netcfg (oder ifconfig statt netcfg).

# CLI for device(s) list.
adb devices

# Connect over TCP-IP
adb tcpip 5555

# CLI to find IP address
adb shell ip addr show wlan0

# to connect over Wi-Fi
adb connect <DEVICE_IP_ADDRESS>:5555