ANTI HEARING IMPAIRMENT, NEW AIR OPENING TYPE, SAFETY SAINT EARPIECE

摘要

PURPOSE: anti-hearing impairment, new tuyere-type, peace sacred ear machine offer prevent noise hearing disabilities obstacle, lead to earphone or closed headphone by being formed. ;CONSTITUTION: opening is formed in earplug to prevent noise from hearing obstacle. The open form is small in size, to prevent hearing disabilities people from be used for a long time because being exposed to big volume. The disclosure right issue improves resolution ratio. Cotton is padded in the ears and is converted into space openings in the space. ;The 2011 of copyright KIPO submissions