Details
Fetal Doppler is a hand-held ultrasound device that uses sound waves to listen to a fetal heartbeat.  This device brings you a clear sound of your baby’s heartbeat and the probe must be in contact with your skin via using gel, oil or water to obtained an accurate fetal heart rate.
A professional device suitable for Gynaecologist and easy to use for mothers at home, which is applicable to clinic and home for daily self-check by pregnant women.
Clear Sound: Now you can safely listen to your unborn baby's heartbeat comfortably and privately at your own home. 
Design comes from life: The simple design of the 3 button and support for the 3.5mm headphone port, make it easy to listen in many situations.
Normal Reading: The normal heart rate of an unborn baby is approximately 120-160bpm. 
High sensitivity non-radiation 3.0MHz Doppler probe 
Intelligent noise reduction technology And Autocorrelation algorithm. 
Parameters of fetal doppler: 
Probe frequency: 3.0 MHz ±10% 
Error range: ±2bpm 
Rate display range: 30-240bpm 
Size: 130mm (L)*100mm(W) *36mm(H) weight: 250g 
Battery: 2xAA batteries(not included)