Using the ADJ Airstream IR 4 adapters is easy. First, plug the adapter into the phone output of your iPad or iPhone. Then, download the free Airstream IR app from the Apple App Store. When using the app and the adapter, make sure to turn the headphone volume all the way up. Also, switch off the EU volume limitation in your device settings (Settings>Music>Volume Limit>EU Volume Limit>OFF). You can then start controlling various ADJ lighting fixtures wirelessly. As for maintenance, keep the adapters clean and dry. Avoid exposing them to extreme temperatures or moisture. If you encounter any issues, check the connection between the adapter and your device and ensure the app is up - to - date.