8 Comments. 1  Good article and beautiful snake pictures. 2  Thereâs the coral snake and its non-venomous look-alike, the king snake. 3  Hog nose snakes (puff adders) meet pretty much all of these traits listed but are not considered venomous (to humans).
Buzzer or Ringer. When the radio components of the handset receive the ringer signal from the base, they send electrical signals to the buzzer. The buzzer changes those electrical signals into sound much like the speaker does. You hear the buzzer sound and know that someone is calling you.
Bark collars. And finally there are bark collars that automatically set off an interrupter when the dog wearing the bark collar barks. Some bark collars emit a noise, some bark collars a blast of air or citronella and some use an electric stimulation between two points on the collar that limit the feeling to that area.