diff --git a/examples/AN00246_xua_example/src/xua_conf.h b/examples/AN00246_xua_example/src/xua_conf.h
index d879e272..6fa7ae62 100644
--- a/examples/AN00246_xua_example/src/xua_conf.h
+++ b/examples/AN00246_xua_example/src/xua_conf.h
@@ -21,5 +21,6 @@
 #define PID_AUDIO_1     1   
 #define PID_AUDIO_2     2
 #define XUA_DFU_EN      0           /* Disable DFU (for simplicity of example */
+#define MIC_DUAL_ENABLED 0          // Use multiple thread
 
 #endif