Mugast Sports Neckband Earphone, Bluetooth 4.2 Stereo and 6D Surround Sound Headphone, IPX7 Waterproof, Sweat-Proof, Approx 40 Hours Talk Time

I've gone through about 15 different pairs of Bluetooth headphones in the time since smartphones and Bluetooth started being a thing, and not all of the headphones are winners. I normally wear Bluetooth headphones when I'm at the gym or when I'm running. I have run a couple marathons in the past. So I go through Bluetooth headphones fairly quickly. When I'm purchasing a pair of Bluetooth headphones I look for two things: one is sound quality, obviously, and durability...if it can survive my workouts and long runs. Sweat is probably one of the worst enemies of electronics, not just because it's liquid, it's also salty, which is extra corrosive to the fragile internal circuits. And headphones that stop working are the worst kind of headphones. Anker reached out with two of their brand new sound core headphones for me to try out, saying these things are sweat-proof They have 700 headphones