| 摘要 |
PURPOSE: A telephone which is available for a secret call is provided to prevent their call content from being delivered to a person next to a user. CONSTITUTION: A bending part(20) or a constructing part is formed in a middle of a body(11). A transmitter(13) is combined to a sound absorption adaptor(40). The sound absorption adaptor prevents sound from being absorbed or being exposed to the outside. The sound absorption adaptor includes a soundproofing wall and sound absorption material. The soundproofing wall blocks diffusion of sound of a caller. The sound absorption material is filled into an inner space of the soundproofing wall. |
