Our patent pending technology allows an ear specialist to collect long term data on the patient's ability to equalise pressure in the middle ear - all while the patient is listening to music or podcasts or watching TV. Difficulty equalising pressure in the middle ear is a common precursor to more serious middle ear health problems such as cholesteatoma ("bone-eater") or hearing loss. Our technology allows the ear specialist to monitor the patient's ability to equalise pressure in the middle ear over a long period of time, and to correlate this with the patient's symptoms.