Wireless bell with self-contained power
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Wireless doorbell for an apartment : Wireless Bell With Self Contained Power
Quote from Article entitled Wireless doorbell for an apartment:
It is not difficult to install a wireless electric bell. To do this, a button should be fixed to the wall by a front door and a response panel - in the room. A battery-powered device is only needed to turn on. It can be hung on a wall or put on a wardrobe. Block with a plug for the network is simply plugged to the socket.
The full version of the article can be found here.
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