GPS Tracking Digital Dog

Features:
1.against loses: when it beyond the distance set in advance, the main engine and sub-machine will sound to give an alarm.
2.seek: in the distance set in advance, the main engine issues the seeking command, the sub-machine will give an alarm .
3.fix the distance: when the distance between the main engine and sub-machine have changed, it will give an alarm.
4.choose the sound/ vibration: you can choose the sound or the vibration or the sound adds the vibration.
5.match the code: you must match the use code one to one first before you use it.
6.set the distance: it can set four distance grades(10m;25m;40m;60m)
7.prompt the distances: press the prompt key of the distance according to the use environment, set the grade of the actual distance .
Dimension:60mm*36mm*15mm