We do not have very good cell service at our house. But the pendant did not work at our house. I called and was sent a different device that plugged into an outlet. The only place it would get any kind of a signal was the far corner of the living room. The signal was not strong enough to pick up a distress call. I returned both units on 1/3/23. They were received at your facility on 1/5/23. When I called and spoke with a representative a refund would be forthcoming, but hasn't been received yet. The service was good, but I am not happy with the refund process.