Bebe Sounds Prenatal Monitor Review

My sister got the Bebe Sounds Prenatal Monitor when she was expecting her son. She could never get it to work even after several tries and reading the instructions repeatedly. I think she said she even took it to an expert. Then she gave it to me a few months later when I was expecting my son. We couldn't get it to work either. We never heard a think, just static and we are tech savvy. I hope others have had better luck.