Harmonica Made By Fender In The Key Of Deville. The Blues DeVille 10-hole diatonic harmonica delivers bright, bold tone and uncompromised pro quality, with phosphor bronze reeds, moisture-resistant ABS combs, gold-etched casing and other features that make it a reliable choice for serious performers. Note: Harmonicas are non-returnable items. Key of F Designed to sound as good as the Fender brand name would suggest Its richer tone and pitch is made possible with a molded PVC comb and precision phosphor bronze reeds Traditional shape and black satin covers will make your harmonica look as good as it sounds Includes vented hard plastic case