diff --git a/src/lib/tunes/tunes.h b/src/lib/tunes/tunes.h
index c3d7f52180..60bedabf66 100644
--- a/src/lib/tunes/tunes.h
+++ b/src/lib/tunes/tunes.h
@@ -42,6 +42,8 @@
 // TODO: find better way to include the number of tunes, maybe include them in the lib directly?
 #include <drivers/drv_tone_alarm.h>
 
+#define TUNE_MAX_UPDATE_INTERVAL_US 330000
+
 class Tunes
 {
 public:
@@ -89,6 +91,8 @@ public:
 
 	unsigned int get_default_tunes_size() {return _default_tunes_size;}
 
+	unsigned int get_maximum_update_interval() {return (unsigned int)TUNE_MAX_UPDATE_INTERVAL_US;}
+
 private:
 	static const char *_default_tunes[];
 	static const uint8_t _note_tab[];