diff --git a/frontend/index.html b/frontend/index.html
index f7b6838..3eeb9c7 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -5,8 +5,8 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <meta name="theme-color" content="#2563eb" />
     <link rel="manifest" href="/manifest.webmanifest" />
-    <link rel="icon" type="image/png" sizes="192x192" href="/icons/professeur-top-192.png" />
-    <link rel="apple-touch-icon" href="/icons/professeur-top-192.png" />
+    <link rel="icon" type="image/png" sizes="192x192" href="/icons/professeur-top-install-v2-192.png" />
+    <link rel="apple-touch-icon" href="/icons/professeur-top-install-v2-192.png" />
     <title>Professeur virtuel</title>
     <script type="module" src="/src/main.jsx"></script>
   </head>
diff --git a/frontend/public/icons/professeur-top-192.png b/frontend/public/icons/professeur-top-192.png
deleted file mode 100644
index d75cd46..0000000
Binary files a/frontend/public/icons/professeur-top-192.png and /dev/null differ
diff --git a/frontend/public/icons/professeur-top-512.png b/frontend/public/icons/professeur-top-512.png
deleted file mode 100644
index 384ce8c..0000000
Binary files a/frontend/public/icons/professeur-top-512.png and /dev/null differ
diff --git a/frontend/public/icons/professeur-top-install-v2-192.png b/frontend/public/icons/professeur-top-install-v2-192.png
new file mode 100644
index 0000000..22b1d93
Binary files /dev/null and b/frontend/public/icons/professeur-top-install-v2-192.png differ
diff --git a/frontend/public/icons/professeur-top-install-v2-512.png b/frontend/public/icons/professeur-top-install-v2-512.png
new file mode 100644
index 0000000..2714db4
Binary files /dev/null and b/frontend/public/icons/professeur-top-install-v2-512.png differ
diff --git a/frontend/public/manifest.webmanifest b/frontend/public/manifest.webmanifest
index 0227b6b..e8d2ee9 100644
--- a/frontend/public/manifest.webmanifest
+++ b/frontend/public/manifest.webmanifest
@@ -9,13 +9,13 @@
   "theme_color": "#2563eb",
   "icons": [
     {
-      "src": "/icons/professeur-top-192.png",
+      "src": "/icons/professeur-top-install-v2-192.png",
       "sizes": "192x192",
       "type": "image/png",
       "purpose": "any maskable"
     },
     {
-      "src": "/icons/professeur-top-512.png",
+      "src": "/icons/professeur-top-install-v2-512.png",
       "sizes": "512x512",
       "type": "image/png",
       "purpose": "any maskable"
diff --git a/frontend/public/sw.js b/frontend/public/sw.js
new file mode 100644
index 0000000..d4356c3
--- /dev/null
+++ b/frontend/public/sw.js
@@ -0,0 +1,9 @@
+self.addEventListener('install', () => {
+  self.skipWaiting()
+})
+
+self.addEventListener('activate', (event) => {
+  event.waitUntil(self.clients.claim())
+})
+
+self.addEventListener('fetch', () => {})
diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index bdfff08..5e3fab6 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -209,6 +209,7 @@ function TutorApp({ currentUser, onLogout }) {
   const [voiceProfiles, setVoiceProfiles] = useState([])
   const [selectedVoiceProfileId, setSelectedVoiceProfileId] = useState('')
   const [progressPanelOpen, setProgressPanelOpen] = useState(false)
+  const [settingsPanelOpen, setSettingsPanelOpen] = useState(false)
   const mediaRecorderRef = useRef(null)
   const mediaStreamRef = useRef(null)
   const recordedChunksRef = useRef([])
@@ -493,6 +494,7 @@ function TutorApp({ currentUser, onLogout }) {
     deactivateAutoListening(false)
     setSessionActive(false)
     setProgressPanelOpen(false)
+    setSettingsPanelOpen(false)
     setCurrentInstruction('')
     setAssessment(null)
     setAssessmentAnswer('')
@@ -942,6 +944,15 @@ function TutorApp({ currentUser, onLogout }) {
                 <h1>{lessonFocus?.label || 'Cours du jour'}</h1>
               </div>
               <div className="lesson-actions">
+                <button
+                  type="button"
+                  className="icon-button"
+                  aria-label="Parametres"
+                  title="Parametres"
+                  onClick={() => setSettingsPanelOpen(true)}
+                >
+                  ...
+                </button>
                 <button type="button" className="secondary-button" onClick={() => setProgressPanelOpen(true)}>
                   Progression
                 </button>
@@ -973,18 +984,6 @@ function TutorApp({ currentUser, onLogout }) {
                 }
                 placeholder={assessment ? 'Ta reponse au mini-test...' : 'Ecris ta reponse...'}
               />
-              <select
-                value={selectedVoiceProfileId}
-                onChange={(event) => setSelectedVoiceProfileId(event.target.value)}
-                title="Choisir la voix de Professeur TOP"
-              >
-                <option value="">Voix</option>
-                {voiceProfiles.map((profile) => (
-                  <option key={profile.id} value={profile.id}>
-                    {formatVoiceLabel(profile)}
-                  </option>
-                ))}
-              </select>
               <button type="button" onClick={startVoiceInput} disabled={isTranscribing}>
                 {isAutoListening ? 'Stop micro' : isTranscribing ? 'Transcription...' : 'Dicter'}
               </button>
@@ -1012,6 +1011,38 @@ function TutorApp({ currentUser, onLogout }) {
                 </aside>
               </div>
             )}
+
+            {settingsPanelOpen && (
+              <div className="progress-panel-backdrop" role="presentation" onClick={() => setSettingsPanelOpen(false)}>
+                <aside className="progress-panel card" role="dialog" aria-label="Parametres" onClick={(event) => event.stopPropagation()}>
+                  <div className="progress-panel-head">
+                    <h2>Parametres</h2>
+                    <button type="button" className="secondary-button" onClick={() => setSettingsPanelOpen(false)}>
+                      Fermer
+                    </button>
+                  </div>
+                  <label className="settings-field">
+                    <span>Voix de Professeur TOP</span>
+                    <select
+                      value={selectedVoiceProfileId}
+                      onChange={(event) => setSelectedVoiceProfileId(event.target.value)}
+                    >
+                      <option value="">Voix de Professeur TOP</option>
+                      {voiceProfiles.map((profile) => (
+                        <option key={profile.id} value={profile.id}>
+                          {formatVoiceLabel(profile)}
+                        </option>
+                      ))}
+                    </select>
+                  </label>
+                  {selectedVoiceProfile && (
+                    <p className="muted voice-note visible-status">
+                      Voix IA non humaine: {selectedVoiceProfile.label} - {selectedVoiceProfile.description}
+                    </p>
+                  )}
+                </aside>
+              </div>
+            )}
           </main>
         )}
       </div>
diff --git a/frontend/src/main.jsx b/frontend/src/main.jsx
index 84181a8..28cc2c1 100644
--- a/frontend/src/main.jsx
+++ b/frontend/src/main.jsx
@@ -8,3 +8,9 @@ ReactDOM.createRoot(document.getElementById('root')).render(
     <App />
   </React.StrictMode>
 )
+
+if ('serviceWorker' in navigator) {
+  window.addEventListener('load', () => {
+    navigator.serviceWorker.register('/sw.js').catch(() => {})
+  })
+}
diff --git a/frontend/src/styles.css b/frontend/src/styles.css
index ab82b39..1b68ee0 100644
--- a/frontend/src/styles.css
+++ b/frontend/src/styles.css
@@ -307,6 +307,14 @@ button:disabled { opacity: 0.5; cursor: not-allowed; }
   display: flex;
   gap: 0.75rem;
 }
+.icon-button {
+  width: 44px;
+  min-width: 44px;
+  padding: 0.8rem 0;
+  background: #e2e8f0;
+  color: #14213d;
+  font-weight: 800;
+}
 .student-home-grid {
   display: grid;
   grid-template-columns: repeat(2, minmax(0, 1fr));
@@ -379,7 +387,7 @@ button:disabled { opacity: 0.5; cursor: not-allowed; }
 }
 .lesson-composer {
   display: grid;
-  grid-template-columns: minmax(0, 1fr) 150px 120px 110px;
+  grid-template-columns: minmax(0, 1fr) 120px 110px;
   gap: 0.6rem;
 }
 .lesson-status {
@@ -410,6 +418,14 @@ button:disabled { opacity: 0.5; cursor: not-allowed; }
   gap: 1rem;
   margin-bottom: 1rem;
 }
+.settings-field {
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+.settings-field span {
+  font-weight: 700;
+}
 
 @keyframes pulse {
   from { transform: scale(1); }
@@ -538,6 +554,11 @@ button:disabled { opacity: 0.5; cursor: not-allowed; }
     width: 100%;
   }
 
+  .icon-button {
+    width: 44px;
+    min-width: 44px;
+  }
+
   .student-home {
     padding: 0.5rem;
   }
@@ -594,8 +615,7 @@ button:disabled { opacity: 0.5; cursor: not-allowed; }
     gap: 0.5rem;
   }
 
-  .lesson-composer input,
-  .lesson-composer select {
+  .lesson-composer input {
     grid-column: 1 / -1;
   }