To use FLEXX M-LINK as a 9-channel transmitter for function models the transmitter SMART SX 9, you need a 9-channel M-LINK Empfänger.Wir recommend the optional 9-channel receiver RX-4/9 FLEXX M-LINK ID (# 5 5837) .The specifics of the RX-4/9 FLEXX are adjustable ID, max. 4 proportional channels, max. 9 switching channels in conjunction with the switching modules multiswitch FLEXX (# 7 5888) .These switching modules can be connected in any quantity in a bus system to the 9-channel receiver RX-4/9 FLEXX.

This M-LINK receiver is designed and built in Germany. Quality Made in Germany!