diff --git a/app/src/main/assets/print_demo.html b/app/src/main/assets/print_demo.html
index 572cf1f..34adcc1 100644
--- a/app/src/main/assets/print_demo.html
+++ b/app/src/main/assets/print_demo.html
@@ -204,7 +204,7 @@
 </div>
 
 <div class="footer">
-    Telewave SDK Connectivity v1.0
+    SDK Connectivity v1.0
 </div>
 
 <!-- 自定义“关于”弹窗 -->
@@ -657,12 +657,18 @@
     // 修复 PTT 按键逻辑：支持 TouchEvents 并处理异常中断
     if (pttBtn) {
         var isDown = false;
+        var lastTouchTime = 0;
 
         var startSpeak = function(e) {
             if (pttBtn.disabled) return;
             e.preventDefault();
+            
+            var now = Date.now();
+            if (now - lastTouchTime < 300) return; // 物理防抖：300ms 内禁止重复触发按下
+            
             if (!isDown) {
                 isDown = true;
+                lastTouchTime = now;
                 pttBtn.style.background = "#b91c1c";
                 pttBtn.innerText = "正在通话...";
                 if (window.android && window.android.pttSpeakPlay) {
@@ -674,13 +680,17 @@
 
         var stopSpeak = function(e) {
             if (isDown) {
-                isDown = false;
-                pttBtn.style.background = "#ef4444";
-                pttBtn.innerText = "长按对讲 (PTT)";
-                if (window.android && window.android.pttSpeakRelease) {
-                    window.android.pttSpeakRelease();
-                }
-                showPttResult("释放话权");
+                // 延迟 50ms 再处理释放，确保即使在极速点击下，Down 指令也先到达原生层
+                setTimeout(function() {
+                    if (!isDown) return; 
+                    isDown = false;
+                    pttBtn.style.background = "#ef4444";
+                    pttBtn.innerText = "长按对讲 (PTT)";
+                    if (window.android && window.android.pttSpeakRelease) {
+                        window.android.pttSpeakRelease();
+                    }
+                    showPttResult("释放话权");
+                }, 50);
             }
         };
 
diff --git a/app/src/main/java/com/stand/standapp/AndroidInterface.kt b/app/src/main/java/com/stand/standapp/AndroidInterface.kt
index 5197f41..689b7b1 100644
--- a/app/src/main/java/com/stand/standapp/AndroidInterface.kt
+++ b/app/src/main/java/com/stand/standapp/AndroidInterface.kt
@@ -17,14 +17,8 @@ import org.json.JSONObject
 class AndroidInterface(private val activity: MainActivity) {
 
     private var isSpeaking = false
-
-    /**
-     * PTT 登录
-     */
-    @JavascriptInterface
-    fun pttLogin(account: String, pwd: String, ip: String) {
-        SendAtUtil.toLogin(account, pwd, ip, 1, 1)
-    }
+    private var lastSpeakTime = 0L
+    private val MIN_SPEAK_DURATION = 200L // 最小通话时长 200ms
 
     /**
      * PTT 开始说话 (带状态保护)
@@ -33,6 +27,7 @@ class AndroidInterface(private val activity: MainActivity) {
     fun pttSpeakPlay() {
         if (!isSpeaking) {
             isSpeaking = true
+            lastSpeakTime = System.currentTimeMillis()
             SendAtUtil.speakPlay()
             Timber.tag("PTT").d("Speak Play")
         }
@@ -43,10 +38,28 @@ class AndroidInterface(private val activity: MainActivity) {
      */
     @JavascriptInterface
     fun pttSpeakRelease() {
+        if (isSpeaking) {
+            val now = System.currentTimeMillis()
+            val duration = now - lastSpeakTime
+            
+            if (duration < MIN_SPEAK_DURATION) {
+                // 如果按得太快，延迟释放
+                val delay = MIN_SPEAK_DURATION - duration
+                Timber.tag("PTT").d("Speak duration too short ($duration ms), delaying release by $delay ms")
+                Handler(Looper.getMainLooper()).postDelayed({
+                    realRelease()
+                }, delay)
+            } else {
+                realRelease()
+            }
+        }
+    }
+
+    private fun realRelease() {
         if (isSpeaking) {
             isSpeaking = false
             SendAtUtil.speakRelease()
-            Timber.tag("PTT").d("Speak Release")
+            Timber.tag("PTT").d("Real Speak Release")
         }
     }