Yes your right they are.. Here is some info I found regarding these puppies
Recognized by
Country of Origin Germany
Life Expectancy 13 - 15 yrs
Height Range 8 - 10 in
Weight Range 6 - 8 lbs
Colors 4 pure white legs, belly & breast. The head white, with blue or black, and gold symmetrical colored. The trunk may be rather white, or blue - white, broken or closely blue absolute or black, without brown coloring
http://www.qualitydogs.com
Trainability Good.
With Children Good
With Animals Good
Climate Tolerates moderate heat and cold, but needs controlled climate
Indoor / Outdoor Indoors. Long coat needs indoor care.
Exercise Reqd High; loves extended play. Good companion to energetic kids
Grooming Reqd High for show coats. Puppy clip for pets makes grooming easier