We like to keep our video set up quick and light for user interviews, so we often use an iPhone 4s for recording. What many people forget is that the headphone jack is also a microphone jack. You can use the headphones with the built-in microphone to record cleaner audio, or use a three-stripe adapter like the iLuv Remote Adapter» to allow any audio device to become the input. We use this setup to get wireless audio from our old Samson UHF Micro 32», or use the headphone out jack on our Samson G Track» for cleaner audio into our videos with no extra adapters or cords. The third stripe is what controls the remote and microphone on the iPhone apparently.