Review on Wireless Doorbell, PHYSEN Waterproof Door Bell Chime Kit Operating At 1300-Ft Range 58 Adjustable Melodies 5 Volume Levels & LED Flash, Doorbell Alarm For Home/Classroom, 2 Push Buttons+4 Receivers by Alejandro Wolf

My husband can't hear his phone so I really like the fact that the unit rings a bell AND flashes when I push the button.We put one in his workshop, one in the back barn, one in the basement and one in our entryway. When I need him to come in the house I can signal him in those places. Now we can use the one in the house for him to signal me if he needs help and also as a doorbell for visitors since we didn't have one before. Working great so far. I do wish there was a super loud signal to choose though.