tuning is done by moving the radio from left to right and volume is controlled by rolling the radio forward and backward

R1 radio by il-gu cha is an analog radio which requires one to tune the radio by physically
rolling it on a surface. studying how people manipulate rather than bury their interactions
with a product, the radio brings about a new kind of behavior between itself and the user.

by using a bevel gear system wheel structure, one can control the radio through
physical movement. the R1 allows users to turn the gadget on or off, and control volume
and tuning simply by physically rolling the radio forward, backward and sideways.

you can view a video of how the R1 functions here.


the wheel structure and speaker on the underside of the radio