Audi Sound

1Only a volume adjustment key control hearing aid, the easy operation when you wear;
Limited the maximum output, so that the user will not hear the excess volume, which can protect the user’s ear; different earplugs are different people using, it can fit for different sizes ear canal;
Mini hearing aid type which can be hidden in the ear and invisible especially for long hair user;
Classic appearance with a very cheap price with good market feedback;
Factory directly sell with certificates, can be sold all over the world;
Design match with ear, comfortable wear, not easy to fall off