diff --git a/src/main.c b/src/main.c
index fd8d76b..3f17267 100644
--- a/src/main.c
+++ b/src/main.c
@@ -317,34 +317,39 @@ static void update_countdown_fsm(uint32_t time_ms)
 					sseg_set_char(0, '#', false);
 					sseg_set_char(1, '#', false);
 					sseg_set_char(2, '#', false);
+					buzzer_on(3951);
 					break;
 
 				case 500:
 					sseg_set_char(0, '1', false);
-					buzzer_on(4000);
+					break;
+
+				case 750:
+					buzzer_on(3322);
 					break;
 
 				case 1000:
 					sseg_set_char(0, ' ', false);
-					buzzer_on(2828);
+					buzzer_on(2960);
 					break;
 
 				case 1500:
 					sseg_set_char(1, '1', false);
-					buzzer_on(2000);
+					buzzer_on(2637);
 					break;
 
 				case 2000:
 					sseg_set_char(1, ' ', false);
-					buzzer_on(1414);
+					buzzer_on(2489);
 					break;
 
 				case 2500:
 					sseg_set_char(2, '1', false);
-					buzzer_on(1000);
+					buzzer_on(2217);
 					break;
 
-				case 700:
+				case 200:
+				case 950:
 				case 1200:
 				case 1700:
 				case 2200: