Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
Wind Tunnel bell is a bicycle alarm bell , it produce the whistle sound by the wind tunnel effect, the user can use different whistle sound or bell according to different road conditions. Especially the 90-degree axis seat which can turn the sound off but can keep the bell function.
National Cheng Kung University
Tainan City, Taiwan
Chang Yu Pan
Kaohsiung county, Taiwan