Exquisite and compact design easy to carry.
0 inchLCD display Range of fetal heart rate: 50 BPM ï½ 240 BPM (BPM: beats per minute) Resolution: 1 BPM Accuracy: ± 2 BPM Power consumption: ï¼1 W Prenatal Fetal Doppler Baby Portable Heart Monitor Pregnancy Heart Rate for Home Pink Batteries Included: Yes Included Items: two 1. Prenatal Fetal Doppler Baby Portable Heart Monitor Pregnancy Heart Rate for Home Product Features: Independent probe easy to replace easy to stretch the user s posture and angle can be adjusted.