diff --git a/Differences-Between-H1-and-H2-models.md b/Differences-Between-H1-and-H2-models.md
index b26881e..9e7da45 100644
--- a/Differences-Between-H1-and-H2-models.md
+++ b/Differences-Between-H1-and-H2-models.md
@@ -52,4 +52,5 @@ Some enthusiasts managed to MOD their H1's by adding a standard usb powerbank ma
 
 ## H2
 
-H2 includes an internal Li-Ion battery, standard battery charging / management IC (located at the side of the speakerphone connector) and power switch.
\ No newline at end of file
+H2 includes an internal Li-Ion battery, standard battery charging / management IC (located at the side of the speakerphone connector) and power switch.  
+The power switch / battery level feature were provided by ``IP5306`` or similar module.  
\ No newline at end of file