Xcode 9 make you free with wireless debugging.No more tied to cable. In order to connect your device for wireless debugging you need to perform following steps
- Open Devices and Simulators window
- Connect your device normally with lightening cable
- Select the device which you want to connect from Devices tab
- Check Connect via network
- After successful connection a network icon will show
Congratulation !!! you are good to go. Now you can do wireless debugging just unplug the cable now. (You should be over same network)