Sonoline B - Baby Heartbeat Tracker
- Product Review (submitted on December 30, 2016):
- Love the idea but the speaker sounds as though it is blown. I've watched several YouTube videos and they sound clear but mine doesn't. I wish I could exchange it so i could use it more often. The heart rate was the same as the one my doctor used. We compared them and he said if it wasn't for the speaker, he would give it a 5star.