As shooters who sometimes work as one-man bands, we are all used to wearing headphones to check sound levels. Being very visual people by nature, a lot of shooters don’t really give too much attention on which headphones they are using. Many are using iPhone headphones because they are simply carrying it the whole time with them. I do that too sometimes, but it really isn’t a good idea. The standard Apple headphones are extremely bad – especially for anything production-related. I have had problems with sound recordings before because I judged the levels wrong using these headphones. Don’t use them for that. Get proper ones!