"Ringer Switch" is an app to switch to silent mode when the specified time or WiFi connection.This is useful when trouble is at home and forget to switch the mode setting of silent mode.Use case• On weekdays from 9:00-want to set the Silent Mode.• Normal mode, you want to connect to WiFi when at home.Main function• Setting the ringer mode at the specified time.• Set the ringer mode when connected to WiFi that you specify.