| 摘要 |
The invention concerns a device (1) forming an end cap for snorkel or diver's demand valve, comprising a body (2) adapted to be engaged in the diver's mouth, and provided with lateral bite tabs (21) and an air intake orifice (23), and means associated with the air intake orifice to modulate phonemes by varying the cross-section of the air intake orifice. The invention is characterised in that the phoneme modulating means comprise deformable lower and upper lips (31a, 31b), provided in the extension of the air intake orifice (23) and designed to be in contact with the diver's teeth and to be brought together by the action of said teeth. |
