Review on 🎧 KZ S1 S1D TWS Bluetooth 5.0 Wireless in Ear Earphones Dynamic/Hybrid Technology Sport Earphones for Enhanced Performance (S1D, Black) by Eddie Burgess

Bought these mainly for work as I needed wireless headphones so I wouldn't get confused. They aren't as good as my KZ ZSN Pro but they do the job exactly as I expected when I bought them. They definitely don't sound terrible though. Eventually I bought memory foam ear tips to replace the rubber ear tips just to make them sound better. A final thought is that the battery life is really good. I'm not sure how long the case will last even on single block charges, but the headphones themselves lasted 5 hours non-stop from full to full charge. Just turn the volume down a bit and it lasts longer than full power.