TR-dog® GPS dog collar device is a high-precision GPS/GLONASS/BEIDOU/GALILEO receiver equipped with a 4G mobile networking module for tracking and training of sporting dogs, this GPS dog tracking collar uses 3 levels of vibration and continuous stimulation training when used with a compatible hunting dog tracking/training handheld, as well as sound recording function. With capability of information transmission both in and out of the coverage of mobile network to ensure the stability of the communication.