Joke Collection Website - Public benefit messages - How long can a big data surveillance phone stay?

How long can a big data surveillance phone stay?

Four hours.

It will identify and judge according to the base station signal received by your mobile phone, measure the time, and locate the location regardless of the call or traffic. After more than 4 hours, your location will be recorded in the travel code. If there is a record, you will usually receive a text message immediately.