Cai 'er nodded and said, " yes, you can. These phones can be used in any background in the space. If you take them out of the space, they can only be used within a ten-thousand-meter radius of you. Outside of this range, they can't be used anymore. &Quot;
Zhao Hai nodded. The surveillance camera was now moving to a new location, and the range of surveillance was about ten thousand meters with him as the center. It seemed that this was all because of the space, which was why the phone could be used outside.
Zhao Hai took a look at the phone in his hand. He couldn't tell what brand it was, but it was beautiful. There weren't many buttons on it. Other than the buttons on ordinary phones, there wasn't much else. However, the screen was very large. It was black and looked simple yet Grand from the outside.
