Hearing aid

Details Hearing aid Hearing aid

2011-05-03

2011-05-03

Kuntz, Curtis (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having acoustic wave modifying structure

C381S322000, C381S323000, C381S330000

Reexamination Certificate

active

07936893

ABSTRACT:
In a hearing aid, a main body case has a fitting-use first communication terminal provided inside the main body case, so that the first communication terminal can be visually checked when the battery case is removed by turning, and the battery case has a first locking protrusion that is engaged with the main body case and a pressing protrusion that is opposite the first communication terminal, when the battery case is turned for installation.

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