Small Fetal heart beat indicator.

Easy to use

Heart rate Display ( 25*14 mm)

Clear sound ,and less noise

Can hang it by hang lace

Automatic Display Freezing After remove from the body

Light weight of 80g, batteries included

Runs on standard AAA batteries and continuous working time is 8 hours

Options: Mini speaker, Rechargeable battery &Charger ,Small bag (case)