content: I must say that I have to agree with all of the bad reviews for this product. There are two main issues I have with this wireless chime. One, the microphone's sensitivity is poor. Like most reviewers here, I had to place it right next to the door chime, and I had to turn the sensivity setting all the way up for it to work. And two, the unit rings falsely all times of the day, tho' it seems to be most annoying at 3 in the morning. Many times I've had to get up and remove the receiver from the power outlet to get it to stop. The manual says the unit may send out false signals due to loud noises - not so; at 3 am, it's quiet as a church-mouse in my house! Unfortunately, I bought this at Home Depot without doing online research. My conclusion - don't buy this product; do your research and spend a few dollars more for a better quality product.