X-ray spectra of BHBs may also exhibit an Fe K$\alpha$ emission line that is often relativistically broadened (§8.2.3). In some BHBs, particularly those with inclinations that allow us to view the disk largely face-on, the spectral model requires the addition of a disk reflection component (e.g., Done & Nayakshin 2001). In this case, the X-ray PL is reflected by the accretion disk and produces a spectral bump at roughly 10 to 30 keV. Finally, high-resolution grating spectra of BHBs sometimes reveal hot gas that is local to the binary system (e.g., Lee et al 2002). Such features may eventually help us to interpret X-ray states, but at present there are too few results to support any firm conclusions.