There is nothing more special and reassuring than hearing your little ones beating heart. The Mini Fetal Doppler from BabyHeart makes this possible from the comfort of your own home. This affordable option is nice and lightweight and easily transportable, so you can carry the comfort with you wherever you go. This affordable fetal doppler provides the perfect peace of mind to help you through, offering reassurance between doctors visits. Our Mini Fetal Doppler is medical grade and can be used by medical professionals, FDA approved and registered with the Australian Register of Therapeutic Goods (ARTG Listing277143). Battery: 9V Patch Test: To determine whether this doppler gelis suitable for your skin, first, patch-test the product on an unobtrusive area of skin, such as under your chin or behind your ears, and leave for 24 hours. For external use only. Avoid contact with eyes. If irritation occurs, discontinue usage. Keep out of reach of children.