diff --git a/Extensions/Vibrations.js b/Extensions/Vibrations.js
new file mode 100644
index 0000000..1862427
--- /dev/null
+++ b/Extensions/Vibrations.js
@@ -0,0 +1,40 @@
+(function(Scratch) {
+  "use strict";
+  
+  class VibrationsExtension {
+    getInfo() {
+      return {
+        id: 'vibrationsextension',
+        name: 'Vibrations',
+        color1: '#e0a000',
+        color2: '#d09000',
+        color3: '#d09000',
+        blocks: [
+          {
+            opcode: 'isAvail',
+            text: 'is vibrations available?',
+            blockType: Scratch.BlockType.BOOLEAN
+          },
+          {
+            opcode: 'vibrate',
+            text: 'vibrate for [LEN] milliseconds',
+            blockType: Scratch.BlockType.COMMAND,
+            arguments: {
+              LEN: {
+                type: Scratch.ArgumentType.NUMBER,
+                defaultValue: 30
+              }
+            }
+          }
+        ]
+      };
+    }
+    isAvail() {
+      return Scratch.extensions.unsandboxed && typeof navigator.vibrate == "function";
+    }
+    vibrate(args) {
+      if (this.isAvail()) navigator.vibrate(Math.min(args.LEN, 300));
+    }
+  }
+  Scratch.extensions.register(new VibrationsExtension());
+})(Scratch);