제품 개발 과정(2016.06~2019.01)

Product Design Sketch (2016. 06)

1st Prototype Design (2016. 12)

1st Prototype Mock-up (2017. 01)

2nd Working Product Design (2017. 07)

2nd Working Mock-up (2017. 09)

2nd -> 3rd Design Modification (2017. 12)

Final Product Design (2018. 03)

Final Mass-Product (2019. 01)