HJ3.7B explosion proof mobile phone

1.Main technical parameters
1.1working voltage:DC 3.7V
1.2Mobile phone maximum working current:≤ 900mA
1.3Mobile phone standby current:≤ 100mA
1.4working frequency:1920MHz～2170 MHz
1.5Modulation:QPSK
1.6Launch field strength:33dBm
1.7Receive sensitivity:≤-80dBm
1.8Ring loudness:More than 70dB (A); (the volume of the mobile phone is the largest, the loudness at 0.5m)
1.9Function:Through the wireless base station, the terminal, the terminal and the server can communicate with each other and have a ringtone and motor vibration prompt function.