| 摘要 |
PROBLEM TO BE SOLVED: To provide a hearing aid that can increase a hearing aid function much more by clearly catching a conversation voice sound. SOLUTION: A plurality of input slave units 1-1, 1-2, 1-3 is placed at a different position of a body and a master unit 2 receives the sound from the input slave units L-1, L-2, 1-3 wirelessly, the master unit 2 applies compression and amplification or the like to the received sound through multi-channel division, sums finally the sounds and transmits the resulting sound wirelessly to a sound output slave unit 3, which outputs the sound. |
