3D Keepsake offers regular (2-dimensional) ultrasound services, which were introduced to the public in the 1970s and provide amazing insight into the human body.  The black and white 2D ultrasounds are the most diagnostic and are always used for medical ultrasounds for this reason.  Also, the gender is most accurate when determined in 2D.
However, the 4-dimensional ultrasound offers not only the opportunity to see the baby clearly in 3-D (still images), but also adds the fourth element of real-time, which allows the incredible opportunity to see moving images of your unborn child.