Review on 🏊 Waterproof Stream MP3 Bluetooth Music Player for Swimming Laps and Watersports - 100% Waterproof with Underwater Headphones, 8GB Storage, Normal Cord – by H2O Audio by Eric Pruett

The set is functional, it works while I swim every day. My problem is the consistency of the sound, when I start swimming you can clearly hear the music in both ears. During swimming, the noise level from an earbud decreases significantly over time. This happens every time I swim. After I leave the pool a few minutes later, the sound level in both capsules is the same again. This product is the best I've tried training with, but it's nothing special.