Klotz kab XLRF/Stereo minijack 90 cm

Klotz AU-MF 90 cm mobile recording cable XLR female - mini jack
transmits a balanced mono signal to two unbalanced stereo channels

When external mono microphones are connected to the stereo input of a portable recorder 
or other device, they deliver only one single-channel signal. The special wiring of this 
cable solves the problem. The cable transmits a balanced mono signal to two unbalanced 
stereo channels, enabling high-end microphones to be used and their signal played 
back through both channels.