Good stretch, durable, does not block the ear canal, even during strenuous exercise.
Made of hypoallergenic, medical-grade polymers that are soft, comfortable, and non-slip enough to make you forget it's there.
Silicone ear molds (1 pair large/medium/small) Whether it is left ear or right ear, there is always a fit for you.
Don't worry about any problems, we have carefully checked every product, we are willing to offer 3 months replacement and return, 100% satisfaction guarantee.