LCD screen display
<br /> Autocorrelation algorithm for high FHR accuracy
<br /> Advanced digital signal processing(DSP) technical applied for real-time calculation of FHR
<br />High sensitivity wide beam integrated sensor for reliable detection throughout pregnancy
<br /> Active noise reduction for crystal clear fetal heart sounds
<br /> Advanced autocorrelation algorithm for high FHR accuracy
<br />Elegant and compact design, portable and convenient for home use
<br /> Advanced power management for long battery life
<br /> Low ultrasound power, safe to the fetus
<br /> Automatically power-off in one minute without operation
<br /> Low battery indicator
<br />Signal quality indicator
<br /> Volume controller