diff --git a/README.md b/README.md
index 4406cb8..9fae17c 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@ Baofeng firmware for the DM-32UV DMR radio (known as the Taiwan version), differ
 
 Reset radio by first uploading a CPS file with allow reset selected and turn on while holding SK1 and SK2, the reset menu can then be initialised.
 
+The two side buttons on this version are smooth and lack the raised tactile horizontal ridges [|] [||]
+
 **Additional (unverified) information gleaned from ChatGPT**
 
 The Baofeng DM-32 DMR radio has two distinct versions, with the earlier, less common variant featuring the HR-C6000 vocoder chipset. This version is believed to have been developed in collaboration with a Taiwanese partner and is sometimes referred to as the "Taiwan version."