We provide free hearing tests at over 70 dedicated hearing centres nationwide, most of which also offerear wax removal. Our registered hearing care professionals at Hidden Hearing Oxford are all highly trained and dedicated to helping more people hear better. We offer a range of the latest digital hearing aids from many award-winning manufacturers. You can try hearing aids risk-free for 60 days with our money-back guarantee. And as a Hidden Hearing customer, you're entitled to free, lifetime aftercare which includes free hearing aid batteries for three years.