Summer Infant Heart-To-Heart Prenatal Listening SystemNo need to wait for a doctor visit you can listen to baby`s heartbeat anytime you want. This system comes with 2 headsets to share the moment of baby`s first heartbeat movement or those humerous h iccups right in the womb. Complete with instructions on how to use with volume control and on/off switch. A convenient waist strap is adjustable. Cables are included so you can hook up to record the precious sounds from inside. Perfect gift for the Mom to be