It was a little whistle that controlled the audience
For fans, the most heard on the court, in addition to the shouting of mountains and tsunami, must be the referee's whistle. Modern whistle is mostly made byplastic manufacturers
People who have played the whistle should have the impression that there are many small balls in the whistle. The small balls will jump under the action of the air flow, the frequency of sound will also change, and the whistle will change.
And this type of whistle with a ball has a more "professional" name-the pea whistle. It was invented by an inventor named Joseph Hudson around 1884
The whistle originally appeared as a musical instrument or toy. The referees never thought of using a whistle. At the time of the football game, the referees were not holding a whistle, but a handkerchief. They controlled the game by waving a handkerchief. Joseph's client was not a referee, but-the British police. It was later used in competitions and has been used to this day, becoming the most widely used whistle in the world. If you want to own a whistle, you can buy it from aparty supplies manufacturer
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Model: AR-287 Name: LED Luminous Whistle Switch Mode: Rotate Battery: AG13*3 Material: Plastic Emitting Color: Multi-color Size: Φ15*75*300mm Weight: 20g Features: 1.Lovely shape ,a variety of bright colors , very suitable for children 2.More cute little toy also create a ...
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Model: AN-135 Name: LED Whistle Keychain Switch Mode: Button Battery: AG10*3 Customization: LOGO Material: ABS Size: Φ36*13*50mm Features: 1.On/off function for quiet situation. 2.With a high bright white bulb. 3.Works with any keys. 4.Electronic key finder helps you to find ...
Model: AN-140 Name: LED Whistle Keychain Switch Mode: Button Battery: AG10*3 Customization: LOGO Material: ABS Size: Φ40mm Weight: Features: 1.It can be a good promotion gift 2.Work with keyring 3.Whistle sound will make it to beep 4.Electronic key finder helps you to find ...
Model: AN-140 Name: LED Whistle Keychain Switch Mode: Button Battery: AG10*3 Customization: LOGO Material: ABS Size: Φ40mm Features: 1.It can be a good promotion gift 2.Work with keyring 3.Whistle sound will make it to beep 4.Electronic key finder helps you to find your lost ...
Model: AN-135 Name: LED Whistle Keychain Switch Mode: Button Battery: AG10*3 Customization: LOGO Material: ABS Size: Φ36*13*50mm Features: 1.On/off function for quiet situation. 2.With a high bright white bulb. 3.Works with any keys. 4.Electronic key finder helps you to find ...
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