diff --git a/electron/main.js b/electron/main.js
index 21f33fb..0f8233d 100644
--- a/electron/main.js
+++ b/electron/main.js
@@ -155,16 +155,31 @@ h2{font-size:16px;margin-bottom:12px;color:#ccc}
 .item:hover{border-color:#7c5cff;transform:scale(1.03)}
 .item img{width:100%;height:120px;object-fit:cover;display:block;background:#111}
 .item .label{padding:8px 10px;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
-.cancel-row{text-align:center;margin-top:14px}
+.bottom-row{display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding:0 4px}
+.audio-toggle{display:flex;align-items:center;gap:8px;cursor:pointer;user-select:none}
+.audio-toggle input{display:none}
+.switch{width:36px;height:20px;background:#3a3a4e;border-radius:10px;position:relative;transition:background .2s}
+.switch::after{content:'';position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:#888;transition:transform .2s,background .2s}
+.audio-toggle input:checked+.switch{background:#7c5cff}
+.audio-toggle input:checked+.switch::after{transform:translateX(16px);background:#fff}
+.audio-label{font-size:13px;color:#aaa}
 .cancel-btn{background:#3a3a4e;color:#e0e0e0;border:none;padding:8px 24px;border-radius:6px;cursor:pointer;font-size:14px}
 .cancel-btn:hover{background:#4a4a5e}
 </style></head><body>
 <h2>Bildschirm oder Fenster w\\u00e4hlen</h2>
 <div class="grid" id="grid"></div>
-<div class="cancel-row"><button class="cancel-btn" id="cancelBtn">Abbrechen</button></div>
+<div class="bottom-row">
+  <label class="audio-toggle">
+    <input type="checkbox" id="audioToggle" checked>
+    <span class="switch"></span>
+    <span class="audio-label">\\uD83D\\uDD0A Audio mitstreamen</span>
+  </label>
+  <button class="cancel-btn" id="cancelBtn">Abbrechen</button>
+</div>
 <script>
 const sources = ${JSON.stringify(sourceData)};
 const grid = document.getElementById('grid');
+const audioToggle = document.getElementById('audioToggle');
 sources.forEach(s => {
   const div = document.createElement('div');
   div.className = 'item';
@@ -176,7 +191,7 @@ sources.forEach(s => {
   label.textContent = s.name;
   div.appendChild(label);
   div.addEventListener('click', () => {
-    require('electron').ipcRenderer.send('${PICKER_CHANNEL}', s.id);
+    require('electron').ipcRenderer.send('${PICKER_CHANNEL}', { id: s.id, audio: audioToggle.checked });
   });
   grid.appendChild(div);
 });
@@ -209,20 +224,22 @@ document.getElementById('cancelBtn').addEventListener('click', () => {
 
     let resolved = false;
 
-    const onPickerResult = (_event, selectedId) => {
+    const onPickerResult = (_event, selection) => {
       if (resolved) return;
       resolved = true;
       ipcMain.removeListener(PICKER_CHANNEL, onPickerResult);
       picker.close();
       try { fs.unlinkSync(tmpFile); } catch {}
 
-      if (!selectedId) {
+      if (!selection) {
         callback({});
         return;
       }
+      const selectedId = typeof selection === 'string' ? selection : selection.id;
+      const withAudio = typeof selection === 'object' ? selection.audio : true;
       const chosen = sources.find(s => s.id === selectedId);
       if (chosen) {
-        callback({ video: chosen, audio: 'loopback' });
+        callback(withAudio ? { video: chosen, audio: 'loopback' } : { video: chosen });
       } else {
         callback({});
       }
