Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

wind whistle / bicycle accessoy

wind whistle
wind whistle

Wind Whistle is a bicycles accessory to generate sounds during riding. Pedestrians or other riders will sense the sounds to be aware of distance in between to avoid accidents. In compliance with of Bernoulli's law, the whistle generates sounds and itself is a resonance cavity. As speed increases, sounds become louder. Turn 90 degrees of whistle to shut off whistle.


National Cheng Kung University

National Cheng Kung University
Tainan City, Taiwan

Go to profile

Chang Yu Pan

Chang Yu Pan
Kaohsiung county, Taiwan