Thermometer & body tester - prenatal heart listener is a kind of electronic device used to monitor baby's fetal heart. Its main duty is to deal with cases according to the condition of baby's quickening. It is a must-have for pregnant women. We therefore introduce our new product to you. This kind of prenatal heart listener is made of high quality material. You can trust us in terms of quality. The best time for using is about 16 to 28 weeks after pregnant. It is quite easy to operate with the given instruction. This device can help you know your baby's health state. It is really a necessity. Do you want to have one for yourself? if so, please make a wise decision right now! features used to monitor baby's health statework best after 16-28 weeks of pregnanta must-have for pregnant womenmade of high quality material and adopt advanced technologyhelp you to deal with sudden cases of your babyspecifications shapeheartmaterialabscoulorrandomworking time8 hoursoperating temperature5 "ƒ~40 "ƒatmospheric pressure86kpa~106kparated operating frequency3.0mhz+5%acoustic impedance ratio of acoustic coupling agent(35 "ƒ)1.5ã-106～1.7ã-106pa ·s/m ph5.5~8.0 batterybuilt-in 9v battery dimensions4.53 x 3.78 x 2.32" / 11.5 x 9.6 x 5.9cm (lxwxh)weight7.48 oz / 212 gsuitable forpregnant 16 weeks pregnant and abovepackage includes 1 x prenatal heart listener (coulor random)1 x recording cable1 x headphone1 x battery1 x manual .
