Features: 1) wonderful gift imagined and designed for pregnant women to listen to heartbeat and movements of prenatal babies 2) prenatal babies' activity can be heard from the twelfth week of pregnancy with the sounds of hiccups, kicks, blows and heartbeats 3) thanks to the cable of recording, you will be able to record those first sounds for life. It not only can be recorded by the computer, but also cassette or cd 4) enjoy a first private communication with your baby and make a souveniror his growing up. E-mail the first sounds to your family and friends who are not at your side but want to share the happiness together 5) like a family doctor, it can help you keep the prenatal babies' health by detecting heartbeat rate three times per day Outer packing: 30 sets/ctn