Even with regular cleaning, you need to replace the tubes and domes regularly. Because the domes and tube will lose its shape or stiffen and get bent over time. These factors wound decrease the quality of sound too.
As this process happens slowly, much like hearing loss, you might not realize the sound quality from your hearing aid is slowly getting worse. We suggest user replacing the tubing and domes every 2 to 3 months. Vivtone provides extra tubes and domes in the accessories box when you buy the device. You can buy more later on our official website or Amazon.
We know that many customers who thought their hearing aids were defective, only to put a new tubing and tip on their hearing aid and have it sound like they day they bought it!