shock.
6、Flashlight button（
）, cycle short press to switch between
long on/flash. (standalone system, still available after
shutdown)
7、Beep button, short press （
）（ ▲ ）（ ）（ ）（ ）,it
will emit 5 different sounds. When the key is locked, press and
hold the （
） for 3 seconds to make a music sound.
