Review on 🏊 Swim in Harmony with H2O Audio Sonar - Underwater Waterproof Headphones with MP3 and Bluetooth by Shawn Bass

Please note this is a bone conduction device that attaches to swimming goggles. They work primarily by vibrating your skull. It's all good but the first time my girlfriend wore them she came out of the pool with a black eye. Yes, she wore her glasses tightly, but you have to somehow keep in contact with the skull. So the vibration went through the strap and must have vibrated the eyecup around her eye enough to actually hurt her. Yes she is a small and delicate person, if you have hard eye sockets you might be fine but just thought I'd warn people about that.