Earphones aren't regulated and have all the same risks. In fact neither are all the cheap not-quite-hearing-aids. I have one that looks just like an old hearing

Earphones aren't regulated and have all the same risks. In fact neither are all the cheap not-quite-hearing-aids. I have one that looks just like an old hearing aid but cost maybe $50. Safety really isn't a risk here any more than it is for consumer goods.