The iCap($100) is a mp3 player snaps onto your cap that feaures allow you to listen to music and still hear all the traffic and interact with the people around them. Not having headphones in saves your hearing. Is it a good idea? I don't know, but I don't like it, for them who will go out alway wear a cap. The iCap features include a 1GB MP3 player, an FM tuner, a Voice Recorder, 2 speakers, Micro SD card Slot and a cap.