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The alarm cancellation method of the electronic watch is as follows: Press S2 (alarm) intermittently, and then press S1 (date) until the clock on the Mingrui electronic watch is not displayed.
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Just tune the alarm volume of the mobile phone to a small one, and turn it to 1, you see that it is not small, it is really stupid.
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The phone's alarm clock can adjust the volume.
Use a paper towel to pad the bottom, the sound will be much quieter, but it is a little troublesome, you need to pick up the paper towel and throw it in the trash when you pour it out, otherwise it will be easy to block the sewer pipe!
Lubricating oil is placed on the hinge of the security door, and then the security door lock is adjusted back by 1 2 mm. There will be no sound.
See if it's a problem with the settings, if not.
There are several reasons for that: >>>More
This is a hidden doorbell, you can remove the broken doorbell and go to the store that sells the security door in the building materials city to ask if there is the same model, you can buy it. >>>More
It's a little bit, but it doesn't have an effect, it's the same as radiation in normal use, but it's a little bigger when the battery is low, but it's not a threat.