To install the bone conduction speaker unit null bone conduction speaker which in the frame

摘要

And it is an object to prevent the occurrence of sound leakage in a non-telephone call, to provide a bone conduction speaker unit using the same bone conduction speaker holder may be performance of the bone conduction speaker equivalent to the conventional one during a call It is an, and a holder 1 for mounting the housing 21 of the communication device such as a telephone bone conduction speaker 2, the holder 1 is an elastic material made iodide portion for supporting in surrounding bone conduction speaker 2 as a whole 3, and an elastic film which consists of a movable top surface 4 which covers the upper surface of the volume part 3, may vibrate with it by contact movable top 4 and the diaphragm 20 of the bone conduction speaker 2, the collision on the inner surface and a section 8, in the non-use of the communication device, and abuts the diaphragm 20 of the projection 8 Nomigahone conduction speaker 2.