C.A. Seydel Söhne Nonslider Chromatic de Luxe; Solo-tuning in D; Chromatic Harmonica with 12 holes, 48 Stainless Steel reeds; innovative CNC milled double row halfmoon-shaped mouthpiece with 2 x 12 round holes (replaces the slider pack); maintenance free and air tight: low air consumption and very dynamic playing; the 12x2 channels correspond to three full octaves of standard chromatic instruments; equal temperament, concert pitch a' = 443 Hz (pitch drops slightly if played with a certain pressure); very airtight construction (without slider); with valves; tolerance-optimized reed plates made of German silver yield excellent flatness; corrosion-free stainless steel cover plates; robust, high-precision CNC milled comb made of acrylic glass with optimized cells for ideal tone response; semi-transparent orange; full, loud sound and fast direct tone response