是否智能( 可连接Bluetooth, Zigbee, NFC, Wi-Fi, LiFi, 3G等)
不支持
Function
B21L pet gps tracker
Network
GSM/GPRS 850/900/1800/1900MHz
Battery
1500 mAh rechargeable/6days standby
Size/weight
57*33*17mm/ 40g
Tracking system
Web platform/ Phone App/ SMS for positions check
GPS accuracy/ GPS Sensitivity
5meters/159dBm
main functions
Shock alarm, SOS alarm, Voice monitoring/recording
Connection
2G/3G/4G/5G Sim Card