Wide-band reflectance measures provide a potential mechanism for the detection of middle ear fluid in young ears. Herein, power reflectance and transmittance measurements are reported from healthy newborn and 1-mo-old babies. At most frequencies, power reflectance and transmittance are indistinguishable for newborn and 1-mo-old healthy babies, with limited or no differences between the two age groups and the males and females. There were small differences in some frequency bands for left and right ears. The measurements made here are similar to other published results in some frequency ranges but differ in other frequency ranges; differences among other studies from neonatal intensive care unit babies, healthy newborn babies, and healthy 1-mo-old babies are discussed.