diff --git a/devices/t21_lite_chinamobile-hdc-51-a5-v12/general/overlay/usr/share/openipc/customizer.sh b/devices/t21_lite_chinamobile-hdc-51-a5-v12/general/overlay/usr/share/openipc/customizer.sh
index 5a87de9..0be4d1a 100644
--- a/devices/t21_lite_chinamobile-hdc-51-a5-v12/general/overlay/usr/share/openipc/customizer.sh
+++ b/devices/t21_lite_chinamobile-hdc-51-a5-v12/general/overlay/usr/share/openipc/customizer.sh
@@ -13,10 +13,13 @@ fw_setenv upgrade 'https://github.com/OpenIPC/builder/releases/download/latest/t
 cli -s .system.webAdmin disabled
 cli -s .system.staticDir /var/www/majestic
 cli -s .isp.blkCnt 1
-#cli -s .nightMode.enabled true
 cli -s .nightMode.irCutPin1 50
+cli -s .nightMode.irCutSingleInvert true
 #cli -s .nightMode.backlightPin ??
 cli -s .video0.codec h264
+cli -s .audio.enabled true
+cli -s .audio.volume 50
+cli -s .audio.srate 48000
 #
 #
 # Set wlan device and credentials if need