diff --git a/app.js b/app.js
index 7d18caf..f1a5754 100644
--- a/app.js
+++ b/app.js
@@ -1,29 +1,55 @@
 let popped = 0;
+const headingElement = document.querySelector("h1");
+const message = document.querySelector("#yay-no-balloons");
+const gallery = document.querySelector("#balloon-gallery");
 
-document.addEventListener('mouseover', function(e){
-    
-    if (e.target.className === "balloon"){
-        
-                e.target.style.backgroundColor = "#ededed";
-                e.target.textContent = "POP!";
-                popped++;
-                removeEvent(e);
-                checkAllPopped();
-    }   
-});
+function playSound(sound) {
+  const audio = new Audio(sound);
+
+  audio.addEventListener("canplaythrough", function () {
+    audio.play();
+  });
+
+  audio.addEventListener("error", function () {
+    alert("Can't Play Audio");
+  });
+
+  // Start preloading the audio
+  audio.load();
+}
+
+
+function removeEvent(e) {
+  e.target.removeEventListener("mouseover", popBallons);
+}
 
-function removeEvent(e){
-    e.target.removeEventListener('mouseover', function(){
-        
-    })
-};
-
-function checkAllPopped(){
-    if (popped === 24){
-        console.log('all popped!');
-        let gallery = document.querySelector('#balloon-gallery');
-        let message = document.querySelector('#yay-no-balloons');
-        gallery.innerHTML = '';
-        message.style.display = 'block';
-    }
-};
+function checkAllPopped() {
+  if (popped === 24) {
+    message.style.display = "block";
+    headingElement.style.display = "none";
+    gallery.innerHTML = " ";
+  }
+}
+
+function popBallons(e) {
+  if (e.target.classList.contains("balloon")) {
+    e.target.style.backgroundColor = "#ededed";
+
+    e.target.textContent = "POP!";
+    playSound("pop-sound.mp3");
+
+    popped++;
+
+    removeEvent(e);
+    checkAllPopped();
+  }
+}
+document.addEventListener("DOMContentLoaded", function () {
+  if ("ontouchstart" in window) {
+    headingElement.textContent =
+      "POP THE BALLOONS BY MOVING OR CLICKING ON THEM";
+    document.addEventListener("click", popBallons);
+  } else {
+    document.addEventListener("mouseover", popBallons);
+  }
+});
diff --git a/pop-sound.mp3 b/pop-sound.mp3
new file mode 100644
index 0000000..bcb9106
Binary files /dev/null and b/pop-sound.mp3 differ