Product description: 1. Portable structure. 2. Display mode: B, B/B, 4B, B/M, M. 3. Enlargement ratio: x0.8, x1.0, x1.2, x1.5, x1.6/x1.8, x2.0 and so on. 4. Real-time image freeze,defrosting function. 5. Up and down, left and right, black and white turn over function. 6. Have many kinds of the body posture mark with belt probe heads mark and puncture guidance function. 7.Have the perimeter, the area, the volume, the slope, the heart rate, the cyclicalmeasure function. Application scope: It can be applied in the internal organs of the abdomen and in the gynecology and obstetrics diagnosis.