Summer Infant Standard Prenatal Listening System is a wonderful way to hear the precious sounds of your unborn baby's tiny heart. This system is completely safe & non-invasive. Unlike ultrasound, it emits no energy into you or your baby. Heart to Heart Deluxe comes with an adjustable positioning belt to allow flexibility for your particular size & unlike other heart listeners. Product
Features: Heartbeat Sensor Positioning Belt 2 sets of earbuds Volume control means that you can hear & share your baby’s heart beat from around 28 to 40 weeks Instructions Requires 1 x 9V battery (not included) Please remember that the summer infant deluxe prenatal heart listening system is NOT a medical device & should NOT be used upon diagnostic & other medical purposes.