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:

iF SOCIAL IMPACT PRIZE (free of charge)

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

Publish your project

1=5 / 1=5


Have you ever thought about operating your mp3 without seeing it when you were engaged in something?
1=5 uses fingerprint reader system with combined mp3 and headphone; your fingerprint becomes the operating buttons that you don’t even need to take care of visual and tactile directions. It becomes one’s own mp3 that the elderly with presbyopia and even visually disabled persons can use it easily.
User can setup button registration at initial use maximizing the convenience with the mostly used finger. Registration can be made with either right and or left hand. Left-handed person can use it the same way.


Hanyang University

Hanyang University
ANSAN, South Korea

Kwang-hyun BAE


Hanyang University

Hanyang University
ANSAN, South Korea

Jae-bum PARK