Upper panel: optical spectra of the WISE J224753.22+ 441315.5, counterpart associated with the AGU 2FGL J2247.8+4412, classified as a BZB on the basis of its featureless continuum. The average S/N is also indicated. Middle panel: normalized spectrum. Lower panel: 5′ × 5′ finding chart from the Digital Sky Survey (red filter). The potential counterpart of 2FGL J2247.8+4412 is indicated by the red circle.