Mastereasy Sound Option, kvm-tec 8141
This option can only be ordered together with kvm-tec Mastereasy extenders.
Also, you can order later:
You have to upgrade with actual Switching-Firmware (kvm-tec.com) and order together with the new ID-No. of receiver unit.
The ID No., you can get by re-power the receiver, type 5 x "Scroll_Lock" hotkey and "m".