Transponder is a german project of Hanz Acid from Erbach and Freund 424 from Kassel.
Hanz Acid is also active in his E.B.M. band Werksfront and he participate also in some other bands with other music styles.
After the realisation of the Rhesus Factor feat. Leaether Strip album “Mann der Arbeit” the idea was born to create a new project with Hanz Acid as a constant vocalist.
Rhesus Factor was stopped and Transponder born. Under the name Transponder the “Rhesus Factor” songs were re-arranged and remixed and published with new Transponder songs.