nbiot kids elderly gps tracker with sos button

This is a mini waterproof gps tracker, it supports NB-IoT network and wifi+lbs+gps positioning style, small size and easy to carry.
It is suitable for kids child or pets or person safety tracking.

Model:
MT90N
Brand:
TWIN MASK
Code:
MT90N

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Parameters:

Items	Specifications
GPS Chipset	Ublox chipset
GSM Chipset	NB-IoT(band:B1/B3/B5/B8)
WIFI module	IEEE802.11 b/g/n
Dimension	504020mm
Weight	50g
Operating Temperature	-20 ～ +55 °C
Charging Voltage	DC 4.5-5.5V/820mA (Mini USB)
GPS Sensitivity	-160Db
Working time	10 days of standby time in personal mode; 12 hours of standby time in vehicle mode
LED	LED for showing states of power, GPS, GSM and battery level
Button	2 buttons. 1 SOS button, 1 power switch