Product name:	Ultrasonic Doppler fetal heart rate meter
Product model:	FD300
Screen type:	TFT display
Heart rate range:	beat 50~240 min
Resolution:	Beat once per minute
Accuracy:	Run-out +2 times/min
Output power:	P < 20mW
Emission area:	< 208mm
Operating frequency:	2.0mhz +10%
Working mode:	continuous wave ultrasonic Doppler
Type of battery:	two 1.5V batteries
Product size:	14cm*8. 5cm*4cm(5.51*3.35*1.57 inch)
Net product capacity:	180g

●High quality: Using high-sensitivity ultrasonic transducer and high-precision FHR TFT digital display; ultra-low intensity ultrasonic output, with extremely high safety quality. ●Safe: The fetal heart rate can be tested at any time. It is safe and has zero radiation. The beautifully designed and lightweight device gives parents-to-be a wonderful experience of hearing their children’s movements, and helps to promote intimacy in the early pregnancy. ●Convenient: The fetal heart rate can be monitored at home, it is very portable, high-precision, and there will be no big errors. ●As a gift: Plug the headphone jack into the main device, listen to the baby’s voice in a quiet environment, and give your loved one a gift that can hear the baby’s voice in the womb.1.When using for the first time, be sure to open the battery cover on the back of the fetal Doppler and insert the battery that meets the requirements. 2.After the headset is plugged in, press the power switch to turn it on until the L CD screen displays. 3.Put an appropriate amount of ultrasonic coupling agent into the ultrasonic probe evenly. (Adjust the volume first at this time). 4.Find the fetal heart, place the probe on the pregnant women abdominal wall, adjust the position or angle of the probe t0 obtain the fetal heart signal, listen for 1 minute each time.