| 摘要 |
<p>By means of the invention an efficient aid is obtained at the same time as it comprises few components and is simple to use. The aid comprises two earphones (3, 4) and at least one microphone (2), which are connected with an amplifier (1) and also exhibiting a delaying unit (5), in which the signal from the amplifier (1) to one earphone (4) is delayed in relation to the signal, which is transmitted to the other earphone (3). </p> |
