| 摘要 |
<p>A hearing aid comprising means for setting an adjustment level, means for setting a desired function, a connector and a cover which detachably extends over said connector. The means for setting the adjustment level comprise two contact elements disposed on either side of the connector, wherein the adjustment level can be set higher or lower by means of one contact element or by means of the other, whilst the desired function can be set by operating the two contact elements simultaneously. <IMAGE></p> |
