Beker BKRBK4GB Waterproof Sports Swimming Headset Bone Conduction Technology - Black

Used once. Sound quality is ok. Better than having earplug while swimming. So far so good.

Great idea, but not well made. Stopped working after about the third time I used it. Annoyed that I just missed the return cutoff by one day. I have used several underwater music players for lap swimming and had high hopes for this as the earphones are usually the part that I have a problem with. I was hoping to avoid earphones altogether by using this.Before it stopped working I might have given it 2.5 stars. As others have said, it is much louder than expected. It's basically just a speaker. Underwater I don't think that's such a big deal; I asked a friend swimming in my lane if she could hear it and she said no. The most frustrating thing about it is the lack of interface for easily uploading songs and the fact that the connecting cord does not stay in place. I had to tiptoe around my computer while it was charging so that it didn't disconnect. You can only upload mp3s, no other audio format. There is no indication that it has loaded the songs or that it is done charging. Definitely not user friendly.Despite all that, if it actually worked, I would have kept using it. The last few times I have tried to use it it plays for maybe a few minutes then dies, despite having charged for hours.