diff --git a/app/src/main/java/com/casic/app/safetreecontroller/fragments/VoiceSettingsFragment.kt b/app/src/main/java/com/casic/app/safetreecontroller/fragments/VoiceSettingsFragment.kt
index 7486f7f..a470954 100644
--- a/app/src/main/java/com/casic/app/safetreecontroller/fragments/VoiceSettingsFragment.kt
+++ b/app/src/main/java/com/casic/app/safetreecontroller/fragments/VoiceSettingsFragment.kt
@@ -68,7 +68,7 @@
                         lifecycleScope.launch(Dispatchers.IO) {
                             for (i in 0 until changeTimes) {
                                 weakReferenceHandler.sendEmptyMessage(LocaleConstant.INCREASE_VOICE_CODE)
-                                delay(100)
+                                delay(500)
                             }
                         }
                     }
@@ -83,7 +83,7 @@
                         lifecycleScope.launch(Dispatchers.IO) {
                             for (i in 0 until changeTimes) {
                                 weakReferenceHandler.sendEmptyMessage(LocaleConstant.REDUCE_VOICE_CODE)
-                                delay(100)
+                                delay(500)
                             }
                         }
                     }