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

Calliope / battery collection unit


Used batteries are bad for the environment and gives bad effect to people living in the environment.
It becomes a problem because the collection rate is low.
By putting in used batteries people can charge their own device wireless.
The colleciton box all over the place can help people freely charge their batteries and the sound it makes when being put in the box will stimulate their curiousity.
These rewards would make people use it more.


Yonsei university wonju

Yonsei university wonju
Industrial design studio
wonju, South Korea


Yosei university

Yosei university
Wonju, South Korea

Hyunwoo/ Park Eunjoo/l Lee