Shokz OpenMove bone conduction headphones. About a year ago I bought some really cheap ($10) bone conduction headphones to test out for riding my bike and stuff, so I can still hear what's going on around me, especially traffic. I wasn't sure how I'd like bone conduction so I didn't want to spend a bunch of money. Well, I did really like it, but because they were so cheap the sound quality wasn't great, and the battery is already kind of starting to crap out, so I decided to get some actually good ones to replace them. So far they're great, would definitely recommend.