Blocked eustachian tubes can cause pain, hearing difficulties, and a feeling of fullness in the ears. Such a phenomenon is referred to as eustachian tube dysfunction (ETD).
By using the frequencies of 150，550，950，5250，25540，
42500，162570，492570，675510，828530 ,
it will help you:
✅ Improve congestion of the eustachian tube.
✅ Relieve ear pain.
✅ Relieve hearing difficulty.
