diff --git a/calculator/calculator.app.js b/calculator/calculator.app.js
index 2c1e8d8..368969c 100644
--- a/calculator/calculator.app.js
+++ b/calculator/calculator.app.js
@@ -554,7 +554,7 @@ function buttonPress(val) {
       }
       break;
     case 'B':
-      Bangle.buzz();
+      Bangle.buzz(30);
       if (isDecimal) {
         isDecimal = false;
         displayOutput(currNumber);
@@ -585,7 +585,7 @@ function buttonPress(val) {
       if (swipeEnabled) drawNumbers();
       break;
     case '.':
-      Bangle.buzz();
+      Bangle.buzz(30);
       specials.R.val = 'C';
       if (!swipeEnabled) drawKey('R', specials.R);
       isDecimal = true;
@@ -646,7 +646,7 @@ function buttonPress(val) {
       }
       break;
     default: {
-      Bangle.buzz();
+      Bangle.buzz(30);
       specials.R.val = 'C';
       if (!swipeEnabled) drawKey('R', specials.R);
       const is0Negative = (currNumber === 0 && 1/currNumber === -Infinity);