diff --git a/popup.js b/popup.js
index aadbc06..26c4e3d 100644
--- a/popup.js
+++ b/popup.js
@@ -1,23 +1,90 @@
-function randomizeValues() {
-    // Random frequency between 1 and 100
-    let randomFrequency = Math.floor(Math.random() * 100) + 1;
+let audioContext = new (window.AudioContext || window.webkitAudioContext)();
+let oscillatorLeft, oscillatorRight, gainNode;
+let isPlaying = false;
 
-    // Random delta between 1 and 30
+function startBinauralBeats() {
+    oscillatorLeft = audioContext.createOscillator();
+    oscillatorRight = audioContext.createOscillator();
+    gainNode = audioContext.createGain();
+
+    oscillatorLeft.type = 'sine';
+    oscillatorRight.type = 'sine';
+
+    updateFrequencies();
+    updateVolume();
+
+    oscillatorLeft.connect(gainNode);
+    oscillatorRight.connect(gainNode);
+    gainNode.connect(audioContext.destination);
+
+    oscillatorLeft.start();
+    oscillatorRight.start();
+
+    isPlaying = true;
+}
+
+function stopBinauralBeats() {
+    oscillatorLeft.stop();
+    oscillatorRight.stop();
+    isPlaying = false;
+}
+
+function updateFrequencies() {
+    let frequency = parseFloat(document.getElementById('frequencySlider').value);
+    let delta = parseFloat(document.getElementById('deltaSlider').value);
+    oscillatorLeft.frequency.setValueAtTime(frequency, audioContext.currentTime);
+    oscillatorRight.frequency.setValueAtTime(frequency + delta, audioContext.currentTime);
+}
+
+function updateVolume() {
+    let volume = parseFloat(document.getElementById('volumeSlider').value);
+    gainNode.gain.setValueAtTime(volume, audioContext.currentTime);
+}
+
+function randomizeValues() {
+    let randomFrequency = Math.floor(Math.random() * 100) + 1;
     let randomDelta = Math.floor(Math.random() * 30) + 1;
 
-    // Set the slider values
     document.getElementById('frequencySlider').value = randomFrequency;
     document.getElementById('deltaSlider').value = randomDelta;
 
-    // Update the displayed values
     document.getElementById('frequencyDisplay').textContent = `Frequency: ${randomFrequency} Hz`;
     document.getElementById('deltaDisplay').textContent = `Delta: ${randomDelta} Hz`;
 
-    // Update the binaural beats if they are playing
     if (isPlaying) {
         updateFrequencies();
     }
 }
 
-// Add an event listener to the randomize button
+document.getElementById('togglePlayPause').addEventListener('click', function() {
+    if (isPlaying) {
+        stopBinauralBeats();
+        this.textContent = 'Play';
+    } else {
+        startBinauralBeats();
+        this.textContent = 'Pause';
+    }
+});
+
+document.getElementById('frequencySlider').addEventListener('input', function() {
+    document.getElementById('frequencyDisplay').textContent = `Frequency: ${this.value} Hz`;
+    if (isPlaying) {
+        updateFrequencies();
+    }
+});
+
+document.getElementById('deltaSlider').addEventListener('input', function() {
+    document.getElementById('deltaDisplay').textContent = `Delta: ${this.value} Hz`;
+    if (isPlaying) {
+        updateFrequencies();
+    }
+});
+
+document.getElementById('volumeSlider').addEventListener('input', function() {
+    document.getElementById('volumeDisplay').textContent = `Volume: ${Math.round(this.value * 100)}%`;
+    if (isPlaying) {
+        updateVolume();
+    }
+});
+
 document.getElementById('randomize').addEventListener('click', randomizeValues);