diff --git a/README.md b/README.md
index ab09d07..3639d2b 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@ This software is licenced under the GPL v2 and is intended for amateur and educa
 - Status LEDs (PTT, COR and digital modes)
 - Serial repeater port for Nextion displays
 - Support for native USB port in STM32F103 CPU
+- Full duplex support with two ADF7021 (experimental)
 
 # Important notes