[ B 02120 ] Y-cable 3.5mm stereo jacks to 4-pin plug

This cable allows the connection of existing headsets type MT-HS-801 to the new BrainCentral system.
In principle, individual headphones (MT-70) as well as microphones (MT-DS-50) can also be connected via it. For the MT-DS-50 microphone, an additional special microphone cable is required as an intermediate piece.