It's great, the sound quality is very good, and it's very satisfying for sports waterproof headphones to have such sound quality. Good material, comfortable to wear.

2. Disadvantages:

The disadvantage is that the ear hurts after wearing it for a long time, and the price is a bit expensive.

3. Summary:

The earphone is good as a whole, from the design of cochlea to the sound quality, it belongs to the top of this price range. The waterproof and sweat-proof design is great for sports, and it can really shield the external noise when running. The effect of stethoscope is not very good. Walking, running and fitness are all good choices all year round.