diff --git a/source/_integrations/bluetooth.markdown b/source/_integrations/bluetooth.markdown
index ac65dad79e1..fd3cccd9207 100644
--- a/source/_integrations/bluetooth.markdown
+++ b/source/_integrations/bluetooth.markdown
@@ -117,6 +117,8 @@ Performance testing used the following hardware:
 - ZEXMTE BT-DG54 (RTL8761BU) 📶
 - ZETSAGE BH451A (RTL8761BU) 📶
 
+📶 Denotes external antenna
+
 ### Unsupported adapters
 
 - Belkin F8T003 ver 2. - Fails to setup and add successfully