Application
Elderly SOS emergency alarm for one click help
Product name
SOS call bell or Emergency caller
Usage
Making a call with a 4G phone card
Communication
4G telephone communication
Feature
Built-in 4G SIM card
Frequency
FDD B1/B3/B5/B8 ,TDD B34/B38/B39/B40/B41
microphone
supporting 4015 microphone
Speaker
Speaker 8 ohm 2 watt