| 摘要 |
A waterproof electronic whistle (10) comprising a housing (100) and also comprising a sealing apparatus (200) provided on the housing (100) for preventing any liquid from entering the interior of the housing (100). The waterproof electronic whistle provides the sealing apparatus on the housing, and the sealing apparatus prevents any liquid from entering the interior of the housing, thus implementing the goal of waterproofing for the electronic whistle; hence, normal use of the electronic whistle is allowed even on rainy days, and in addition, the electronic whistle can also be used in water during emergencies. |
