Traditional doorbells are wired devices and are usually fixed at one place.They are becoming obsolete,because of these reasons it is being replace by advanced wireless doorbell divices.With a wireless doorbell,the position of the switch and the bell is not fixed.
It has a huge advantages, like, EASY INSTALLATION,PORTABILITY,LOW PRICE,NO CABLES etc.
Here the trainees of “ELECTRONICS MECHANIC TRADE” made a wireless doorbell.
Here we have some pictures and video of that event
