Wireless headphones use Bluetooth, given from the phone. I suspect they wouldn't work on an older iPod Shuffle, either. Also, could depend where the headphones plug in. I've seen headphones that plug in through the USB port, and if that's the case it may have moved the recording option from whatever you normally use to those. Do you plug them into your computer or some sort of external converter? Will it not let you record sound, or will it not even start? Is the audio recorded from vinyl/cassettes etc, or internally from your computer? Sorry for so many questions, but just trying to specify your problem.