hospital use portable fetal heart monitor   
1.       Portable and compact
2.       Power saving
3.       Built-in loudspeaker and LCD display
4.       Low ultrasound power
5.       Easy to carry and operate
6.       Blue backlight
7.       Probe: anti-shock and anti-falling down
8.       Rechargeable battery
9.       Waterproof probe
10.   High sensitivity