Review on KELODO S530 Plus Rose Gold Bluetooth Earbud - Mini Wireless Earphone with Mic, Invisible V4.1 Earpiece, Hands-Free Noise Canceling for Apple iPhone and Android Smartphones by Agustin Pavoris

I got it working but the other side said my voice was muffled and there was interference and they couldn't stand it. I heard her perfectly. If it helps anyone: I've tried this on both iPhone 5 and iPhone SE. I've tried this with both Virgin Mobile and T-Mobile; I tried it in a place where I always have a good connection just using my phone. I fully charged my Kelodo headphones. The only problem for me can be that we live about an hour outside of the metropolis, not inside. Coverage here isn't always that good (although the phone works fine even without Kelodo). Good luck everyone!