1. It is easy to bring.
2. It is convenient for the Younger the protect the old, the child, the disabled and pets.

you opened the device and followed the steps to set up.

1. Insert SIM card——power on—— Wait a minutes.

2. Send "DW" and then you can receive the SMS like below:

The SMS's main meaning is :

I was near the Telecom Building, Renmin Road, Longhua Town, Baoan District, Shenzhen.

So you are easy to find.

2. Send "DT", you can receive a map telling you where he/ she is.

3. Send " SKC1" ,then you can got calling one by one minutes after the tracker hear some voices around.

4. Call the tracker, you can hear some voice around to realize whether the child or old, disabled meet some trouble.

Easy to use, and not expensive!