Introducing the Ultrasound Doppler Fetal Heart Rate Monitor - FD100! Our factory is proud to offer this top-of-the-line device that allows expectant parents to listen to their baby's heartbeat from the comfort of their own home. This easy-to-use monitor utilizes advanced ultrasound technology to accurately measure fetal heart rate. The FD100 features a clear digital display and an audio output for easy monitoring. At our factory, we are committed to providing high-quality, reliable products that promote the health and wellness of expectant parents and their unborn babies. Trust us to bring you the best in fetal monitoring technology.