Patent ID: 6975213

Claim:
A whistle, comprising; a whistle member having a mouthpiece at a front thereof, a chamber therein, a passage in communication with the chamber, and an outlet at a sidewall of the chamber, and a light emitting device provided on the whistle member, the light emitting device having a lamp, a battery and a switch device, wherein the lamp is electrically connected with the battery and the switch is provided between the lamp and the battery to turn the lamp on or off, wherein a recess is provided at a lateral side of the whistle, a battery is received in the recess, the lamp includes first and second terminals and is provided in a tube having an end in communication with the recess so that the first terminal of the lamp directly contacts the battery, a cover is detachably provided on the whistle member to cover the battery and parts of the lamp, the cover has an aperture at a center of the cover, and the switch device is a button provided in the aperture, the button being arranged to cause the second terminal to directly contact the battery and switch on the lamp.