What is a mobile phone leaving alarm?

The mobile phone alarm is an alarm to prevent the mobile phone from being stolen.

Mobile phone burglar alarm standard function display stand, built-in alarm function, remote control switch system, standby rechargeable lithium battery, external DC-6V power supply, inclined display stand or horizontal display stand.

When you use the mobile phone, put the button on your finger like a ring. Once the mobile phone leaves, it will make a sound, just like a special "mobile phone alarm". If you are in a dangerous state, you can turn on the GPS positioning function at the same time by pressing the button on the back of the mobile phone, so that the mobile phone case is not only a "shell", but also a safety function.

Extended data:

The use of mobile phone burglar alarm can only be divided into three functions: starting, closing and disarming the alarm.

Turn on the machine. After installing the alarm device, insert the unlocking device, and hear a "beep" to indicate that the machine is turned on. Then pull out the unlocking device.

To shut down, you need to lift the burglar alarm and the bottom contact switch, and then insert the unlocking device after the burglar alarm sounds. When you hear a beep, it means turning it off. Then pull out the unlocking device.

Deactivate the alarm. After the alarm device is triggered and makes a sound, insert the unlocking device and hear a buzzer, indicating that the alarm is disarmed. Then pull out the unlocking device.

References:

Baidu encyclopedia-mobile phone alarm function