Home Monitoring Doppler Fetal Heart Stethoscope

[Product Name]: Doppler Fetal Heart Rate Monitor
[Battery Type]: Two AA batteries
[Ultrasonic frequency]: 3 OMHz
[Waterproof grade]: IP5 dustproof and waterproof grade
[Rated voltage]: DC3v
[Fetal Heart Rate Range]: 50BPM-230BPM
[Fetal heart rate measurement accuracy]: +2BPM (measurement error is less than 2