SweetieSong Fetal Dopplers detect baby heartbeats as early as 12 weeks. SweetieSong Fetal Dopplers are trusted by top hospitals in the US for their Prenatal Care. Our professional and experienced customer service is available in the US. Ask your pregnancy care provider about SweetieSong Pocket Fetal Dopplers. The fetal doppler is only available for medical professional customers' purchase. Contact our sales team at firstname.lastname@example.org if you are a medical professional. A bulk quantity discount is available.