发明名称 SOUND PLAYBACK SYSTEM FOR WEARING AS A HEADSET
摘要 <p>To avoid the disadvantages of known headsets, and in particular to ensure comfortable use, a sound playback system for wearing as a headset (1) is equipped with at least one sound source (3) for example a small speaker, in which the sound source (3) or sources (3) is (are) combined with a soft head piece (9) or overlay, and a connection (5) is incorporated therein for a tape recorder.</p>
申请公布号 WO1987000386(A1) 申请公布日期 1987.01.15
申请号 EP1986000402 申请日期 1986.07.08
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