I purchased these Wireless Headphones, iTeknic Bluetooth 5.0 IPX7 Waterproof 24 Hours Playtime Bluetooth Headphones, with Magnetic Connection, Sports Earphones for Running Built-in Mic as a gift for a friend, and so far their great bluetooth headphones. The sound is very smooth, it does have the latest Bluetooth 5.0 technology. The waterproof feature is nice, especially if you sweat a lot during a workout. Another thing which caught my attention was the 24 hour playback. I think this is a great feature. The instructions say 5 minutes of charging gives 2 hours of play. That sounds pretty awesome to me. Overall, I’m pleased with my purchase.