The MP3 player of Speedo's just a great device. The software is very used to, but you can infect the Speedo and then save his songs also drag and drop on him. The sound is fine you just need to choose the right earbud size careful otherwise comes water between earplugs and ear drum and then it's over with the music: -D. What's already happened to me that leg Remove the earplugs the rubber cap stuck in the ear. It says then stay calm and at home out friemeln again with the tweezers. Still, I love my Speedo because he's just cool (other swimmers always look very confused what is there for a device has) and sweetens my swimming training.