Usage:<br />RFD-D ultrasonic fetal doppler meets the fetus daily check and routine examination at home、 <br />clinic、 community and hospital.<br /><br />Features for fetal doppler:<br />∵ Easy and convenient operation<br />∵ High-fidelity、 crystal clear sound<br />∵ Earphone and speaker are feasible<br />∵ High sensitivity doppler probe<br />∵ Low ultrasound dosage<br />∵ Display with backlight LCD<br />∵ Unique ergonomic design