DACOM Noise Cancelling Headset for Sport,Neckband Bluetooth Headphones, IPX7 Waterproof Running Headphones, 20H Playtime, Deep Bass Stereo,Wireless Earphones

These fit really well and the sound quality is absolutely fine. It's maybe not the bass quality you'd get in more expensive ones, but they're better than some others and emit quite a nice sound. After a rugged going over at the gym, they stayed put and weren't affected by any movements, unlike my Sony cans and Samsung buds which often fell off/out into the workout. One gripe is the multifunction button. It wouldn't be so bad if it was an actual button but it's a touch area. I'm still getting to grips with it. Also there's no volume control, which isn't a massive problem, but at the gym/running, you don't really want to have to reach for the phone to turn it up or down. If I could do a 3.5 I would but the firm fit and sound quality alone nudge it more toward a 4.