feature can be set to On or Off as a default to open or close the amplified function by
pressing M2 button at 1 time.
Lock/unlock button:
Does your phone give the message "phone input blocked"? If so, the switch (8) on the
left side of the phone is set to block. Slide the switch the other way to unblock the phone.
Specifications
Network:
GSM900 class 4 / 880.2-959.8 MHz / < 33 dBm
DCS1800 class 1/ 1710.2-1879 MHz / < 30 dBm
WCDMA class 3 band I / 1922.4-2167.6 MHz / < 24 dBm
WCDMA class 3 band VIII / 882.4-957.6 MHz / < 24 dBm
LTE class 3 band 1,3,7,8,20,28 / 703-2170 MHz / < 24 dBm
Bluetooth 5.0 FHSS / 2402-2480 MHz / < 20 dBm
FM receive / 87.5-108 MHz
GNSS GPS / 1575.42 MHz
Accu: Li-Ion 3.7V 1000mAh