5: When not in use for a long time, please charge the battery once every 1-3 months to
avoid battery aging.
6: The power indicator of the megaphone device is red for insufficient power, green for
normal power.
7: When the signal indicator is green, it means the signal is received.
8: The factory default channel of the intercom and megaphone is 8, when you need to switch
channels, please adjust the intercom and megaphone in the same channel.
