For an inexpensive product, it works very well. In the future I will install a permanent doorbell system, but this product serves my need for now. I am working remotely from an office in the back of my house. Ordered with 3 ringer units: located 1 in the front of the house, 1 in the kitchen area and 1 in my office. My house is 100 years old with thick plaster walls and there are no issues with the wireless signal. Great when a delivery requires a signature. Before this doorbell, I could not hear them knock. Most delivery folks ring the doorbell to let me know when a delivery made, so I can quickly grab the package from the porch
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