diff --git a/examples/companion_radio/ui-new/UITask.cpp b/examples/companion_radio/ui-new/UITask.cpp
index 98423b230..9c9223150 100644
--- a/examples/companion_radio/ui-new/UITask.cpp
+++ b/examples/companion_radio/ui-new/UITask.cpp
@@ -610,7 +610,7 @@ switch(t){
     buzzer.play("ack:d=32,o=8,b=120:c");
     break;
   case UIEventType::advertSent:
-    buzzer.play("Advert:d=16,o=6,b=240:c,e,g,c7");
+    buzzer.play("Advert:d=8,o=6,b=180:c,e,g,c7");
     break;
   case UIEventType::roomMessage:
   case UIEventType::newContactMessage:
diff --git a/examples/companion_radio/ui-orig/UITask.cpp b/examples/companion_radio/ui-orig/UITask.cpp
index 5733fefb2..83aa4c3cc 100644
--- a/examples/companion_radio/ui-orig/UITask.cpp
+++ b/examples/companion_radio/ui-orig/UITask.cpp
@@ -104,7 +104,7 @@ switch(t){
     buzzer.play("ack:d=32,o=8,b=120:c");
     break;
   case UIEventType::advertSent:
-    buzzer.play("Advert:d=16,o=6,b=240:c,e,g,c7");
+    buzzer.play("Advert:d=8,o=6,b=180:c,e,g,c7");
     break;
   case UIEventType::roomMessage:
   case UIEventType::newContactMessage:
diff --git a/examples/companion_radio/ui-tiny/UITask.cpp b/examples/companion_radio/ui-tiny/UITask.cpp
index 3274baa4c..03d84e4cf 100644
--- a/examples/companion_radio/ui-tiny/UITask.cpp
+++ b/examples/companion_radio/ui-tiny/UITask.cpp
@@ -482,7 +482,7 @@ switch(t){
     buzzer.play("ack:d=32,o=8,b=120:c");
     break;
   case UIEventType::advertSent:
-    buzzer.play("Advert:d=16,o=6,b=240:c,e,g,c7");
+    buzzer.play("Advert:d=8,o=6,b=180:c,e,g,c7");
     break;
   case UIEventType::roomMessage:
   case UIEventType::newContactMessage:
diff --git a/src/helpers/ui/buzzer.cpp b/src/helpers/ui/buzzer.cpp
index 1410cf7f1..4ac7e74c7 100644
--- a/src/helpers/ui/buzzer.cpp
+++ b/src/helpers/ui/buzzer.cpp
@@ -50,7 +50,8 @@ void genericBuzzer::playToggle(int count, bool enabled) {
     if (count < 1) count = 1;
     if (count > max_notes) count = max_notes;
     char melody[64];
-    int n = snprintf(melody, sizeof(melody), "Tg:d=16,o=6,b=200:");
+    // d=8 (eighths) at b=180 -> ~166 ms per note, audible on small piezos.
+    int n = snprintf(melody, sizeof(melody), "Tg:d=8,o=6,b=180:");
     for (int i = 0; i < count && n < (int)sizeof(melody); i++) {
         int idx = enabled ? i : (count - 1 - i);
         n += snprintf(melody + n, sizeof(melody) - n, "%s%s", i ? "," : "", notes[idx]);