An officer commanding a fleet or a warship is called?
An officer commanding a fleet or a warship?
Such a device is called a siren.
Red ones!
Yes, "whistle" can be a noun. It refers to a small device that makes a high-pitched sound when blown, often used for signaling or making music.
whistle or horn
A whistle or some other mechanical means (horn) to make a sound AND a bell
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whistle or horn AND a bell
Listening devices (aka: 'bugs') are said to be vulnerable to the playing of sound or music from other sound producing devices (TV's - radio - players - etc) but I cannot assure that this is 100% correct.
A shrill wailing sound.
A shrill wailing sound
Check that the device is producing sound - what are the headphones plugged into? Is the volume on the device turned up. Is there a sound control panel? Unplug them and see if it is working. if necessary, borrow headphones from someone else. Try your headphones in another device. If they still don't work then they are broken and you need to replace them.
Whistle