diff --git a/index.php b/index.php
index d371c9d..5148727 100644
--- a/index.php
+++ b/index.php
@@ -327,12 +327,21 @@ $facebook_link = "https://www.facebook.com/profile.php?id=61587890927489";
             opacity: 0.6;
         }
 
+        .quality-selector-wrapper:hover {
+            background: rgba(255,255,255,0.15) !important;
+            border-color: rgba(255,255,255,0.2) !important;
+        }
+
         .controls {
             display: flex;
             align-items: center;
-            gap: 1rem;
+            gap: 1.5rem;
+            margin-top: 1.5rem;
+            justify-content: center;
+            flex-wrap: wrap;
         }
 
+
         .play-btn {
             width: 72px;
             height: 72px;
@@ -1110,9 +1119,20 @@ $facebook_link = "https://www.facebook.com/profile.php?id=61587890927489";
                         <button id="play-pause" class="play-btn" onclick="togglePlay()">
                             <i id="play-icon" class="bi bi-play-fill"></i>
                         </button>
-                        <i class="bi bi-volume-up"></i>
+                                                <i class="bi bi-volume-up"></i>
                         <input type="range" class="volume-slider" min="0" max="1" step="0.01" value="1" oninput="changeVolume(this.value)">
-                        <button id="sleep-timer-btn" onclick="openSleepModal()" style="background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: white; width: 45px; height: 45px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s;" title="Temporizador de apagado">
+                        
+                        <!-- Quality Selector -->
+                        <div class="quality-selector-wrapper" style="display: flex; align-items: center; gap: 6px; background: rgba(255,255,255,0.08); padding: 6px 14px; border-radius: 20px; border: 1px solid rgba(255,255,255,0.1); margin: 0 10px; transition: all 0.3s;">
+                            <i class="bi bi-broadcast" style="font-size: 0.8rem; color: var(--primary-color);"></i>
+                            <select id="audio-quality" onchange="changeQuality(this.value)" style="background: none; border: none; color: white; font-size: 0.75rem; font-weight: 700; cursor: pointer; outline: none; padding: 0; appearance: none; -webkit-appearance: none; text-align: center;">
+                                <option value="high" style="background: #1a1a1a; color: white;">Alta (HD)</option>
+                                <option value="low" style="background: #1a1a1a; color: white;">Ahorro (SD)</option>
+                            </select>
+                        </div>
+
+                        <button id="sleep-timer-btn" onclick="openSleepModal()" 
+ style="background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: white; width: 45px; height: 45px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s;" title="Temporizador de apagado">
                             <i class="bi bi-clock"></i>
                         </button>
                         <button id="report-issue-btn" onclick="openReportModal()" style="background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: #ff4444; width: 45px; height: 45px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s;" title="Reportar un problema">
@@ -1562,6 +1582,34 @@ $facebook_link = "https://www.facebook.com/profile.php?id=61587890927489";
             audio.volume = val;
         }
 
+        function changeQuality(quality) {
+            const isPlaying = !audio.paused;
+            
+            // NOTE: Replace the 'low' URL with your actual low-quality/mobile stream if available.
+            const streams = {
+                high: 'https://listen.radioking.com/radio/828046/stream/897251',
+                low: 'https://listen.radioking.com/radio/828046/stream/897251'
+            };
+            
+            const newSrc = streams[quality];
+            
+            // Visual feedback
+            const wrapper = document.querySelector('.quality-selector-wrapper');
+            wrapper.style.borderColor = 'var(--primary-color)';
+            wrapper.style.transform = 'scale(1.05)';
+            
+            setTimeout(() => {
+                wrapper.style.borderColor = 'rgba(255,255,255,0.1)';
+                wrapper.style.transform = 'scale(1)';
+            }, 300);
+
+            audio.src = newSrc;
+            audio.load();
+            if (isPlaying) {
+                audio.play().catch(e => console.error("Error al reproducir el stream:", e));
+            }
+        }
+
         function copyTrackTitle() {
             const title = document.getElementById('track-title').innerText.replace(/\s{2,}/g, ' ').trim();
             const artist = document.getElementById('track-artist').innerText.trim();