ISOtunes - PRO 2.0 Industrial Listen Only (IT-28)

Over-ear - 3M worktunes In-ear - Isotunes pros Also, just buy a box of earplugs and have them on hand for when the batteries die or you just want to switch it up. The key here is actual sound deadening, noise cancelling headphones are not ear protection. You want something with a stated decibel noise reduction rating, which both of these have. They're also pretty rugged, so they'll last a while. I ran Isotunes for a long time, the tips just get expensive if you're replacing them regularly, so now I'm almost always using the worktunes. When it's super hot, I don't like the over ear ones, but then I'll just switch to earplugs for a while.

isotunes free. I've used the originals and 2.0. There great, batteries are good and mostly durable. And biggest thing is they come with proper foam ear protection tips, actually making them ear protection

I also use isotunes 2. I tried bone conducting but the sound quality was bad. Isotunes protect hearing, sound good, and last 2 shifts off one charge. 

I was using the Isotunes 2.0 but now I'm on their Advanced BT 2.0. They have a pass-through feature which is pretty nice since people keep bugging me at work and it can actually enhance your hearing. They do have magnets inside the ends, but it's not an issue as long as I don't drop them and they have a clip to make sure that doesn't happen.