If the cell phone is a certain distance (which is called "guarder distance") from you, the sensor will ring or shake so that you can notice the potential theft or lost.

如果手机远离你一定距离(称之为“保卫距离”)，传感器会响或震动以让你注意到潜在的盗窃或丢失。

youdao

Saying, napoleon embraced lifeguard header, kissed French ensign... napoleon and guarder people choke with sobs together rise, hot tear is filled with the socket of eye.

说着，拿破仑拥抱了禁卫军队长，亲吻了法国国旗……拿破仑和卫兵们一起哽咽起来，热泪盈眶。

youdao

Here is the description for our project: our project is a electronic instrument named "cell phone guarder", so that it can warn us of possible theft or lost in crowded area such as buses or subway.

这是我们项目的描述：我们的项目是一个名为“手机保卫者”的电子仪器，它能在在拥挤的地区，例如公共汽车和地铁，提醒我们潜在的手机盗窃或丢失。

youdao

Here is the description for our project: our project is a electronic instrument named "cell phone guarder", so that it can warn us of possible theft or lost in crowded area such as buses or subway.

这是我们项目的描述：我们的项目是一个名为“手机保卫者”的电子仪器，它能在在拥挤的地区，例如公共汽车和地铁，提醒我们潜在的手机盗窃或丢失。

youdao