In the page's words:

KONTAKTFELD is a cultural collective founded in 2020. As a subsidiary project of the GITTER Rave collective, KONTAKTFELD stands for concerts in the post-punk, indie, electro and NNDW genres.
Regular concerts take place at the Goethebunker techno club, the Folkwang Museum, the Zeche Carl and other popular cultural venues in the Ruhr region.
Tickets are available at: www.kontaktfeld.de