Can I use in-ear monitors for everyday listening? Follow You can always use your stage UE PRo in-ear monitors as high-end headphones. We also have an optional iOS cable so that you can use your UE’s with your phone. Our iOS cable can be found here. Related articles What is IPX technology? User Guide What material are your custom in-ears made of? Do I need any other equipment for my in-ear monitors? What are the different levels of noise protection for custom-made ear plugs?