1.Light weight, smart and fasion
2.Sound alarm when FHR is abnormal, safe and reliable
3.High quality stereo headset,clear timbre,volume can be adjusted
4.High precision LCD display
5.AAA alkaline battery,continuous working more than 8 hours
6.Unique configuration of dual ear phone jack, making prospective father and mother can listen the fetal heart tone together
7.Audio output function,to monitor fetal heart sound while being connected with MP3/MP4,PC or other recording system, its part of babys growing memory
