What is it?
A pack of 10 domes for the HDR200 or HDR400 hearing aid models
Size 9, closed dome
This is the dome included by default on a new HDR400 or HDR200
Expected lifespan of a dome varies considerably person to person but manufacturer recommendations are that be changed every 2 months
Please ensure the new dome is securely attached over the end of the tubing before insertion into the ear canal