HELMET TYPE HEADSET USE OF SOUND CLEARNESS COGNITON AND SOUND TRANSFER PREVENTION

摘要

PURPOSE: A helmet type head set for preventing transmission of sound in which a user specifically recognizes to outside provides an effect capable of listening to a training of conversation and a music at the same time by installing a MP 3, a microphone, and a speaker in the head set. CONSTITUTION: A transparent window(13) and controller(70) are located in a front surface(11) of a main body(10). A cassette reproducing part(20) comprises a regeneration roll reproducing a tape and an insertion part(21). A microphone part(30) comprises a fixture(31) and a microphone(32). An MP 3 mounting unit(40) comprises an insertion part(41) and a closable cover(42). A speaker part(60) is connected to a lateral part of the main body.