diff --git a/en/fpv-openipc-aio-mario.md b/en/fpv-openipc-aio-mario.md
index 92c0a21..f5ea3f2 100644
--- a/en/fpv-openipc-aio-mario.md
+++ b/en/fpv-openipc-aio-mario.md
@@ -91,7 +91,7 @@ Default Antenna is ANT1 for 1T1R, ANT0+ANT1 is 2T2R
 
 Reconmand RF setting 
   
-  RF Power max 18dbm for onbard PA
+  RF Power max 18dbm for onbard PA. 0~-25dbm setting
   
   MCS index 1,3(0-7 is 1T1R, 8+ is 2T2R)