Is there a wireless earpiece that will play my mp3s? Sound quality doesn't matter as it's just for audio books and listening to my own voice notes I have pre recorded. I know there are plenty of wearable mp3 player/headphones but I don't want both ears, just one. An earpiece with built in player would be perfect, but failing that an mp3 player with a wireless earpiece is the next best thing. I bought a bluetooth earpiece but it wont play the mp3 files on my phone. It only worked for phone calls.