f(x) Dimension 4 - Docking Station in Japan is the first DVD release from South Korean girl group f(x).
![LiVE is Smile Always ～ASiA TOUR 2018～ [eN＋core] LiVE & DOCUMENT](https://image.tmdb.org/t/p/w500//y8aFCxT7qP4OmlRssaMWoDguAAY.jpg)
