확성기(Megaphone)

Invalid date

v1.41
Fixed siren bug fix

v1.4
Fixed a bug with no volume set in the version of Jelly Beans
Set to beginning megaphone volume Max

v1.3
Delete unnecessary permission
Bug fixes

v1.2
Add speaker and siren volume menu

v1.1
change of help phrase

v1.0
Implementation of loudspeaker function,
Implementation of siren notification feature