Baby Sound A/Baby Sound B Pocket Fetal Doppler

Baby Sound A/Baby Sound B Pocket Fetal Doppler Features
.Integrated design for probe and host.· Double headphone jacks.
.High-sensitivity ultrasound probe.. Screen will be locked automatically when there is no signal for 15s, conve- nient to observe. (only for Baby Sound B)· Power supply : two 1.5V batteries.(AAA LR03)