The HOHNER trilogy of comfort: Rocket, Rocket Amp and Rocket Low. Our Rocket Low is your bass line. Tuned one octave lower for a throaty roar, it provides a unique sonic underpinning for your rock, blues or country song. Or just play it solo and explore the realms of deep-toned harp. Striking looks and incredible sound - let the floor shake with this bass wonder!FEATURESLow tuning: Tuned one octave lower than standard harpsOptimized cover plates and larger air channelsWide open cover plates and larger air channels are specifically designed to generate a loud, powerful soundComfortable comb design: The first serial production harmonica with rounded comb sides, edges, and corners for maximum comfortRecessed reed plate: The reed plates are recessed for a more comfortable mouthpieceZipper Case: Sturdy zipper case allows moisture to evaporate while keeping dust out.TECHNICAL DETAILSReed plates (material, thickness):brass, 0.9 mmReed plates (surface):brassReeds (number, material):20, brassComb (material, color):ABS, blueComb (finish):ABSMouthpiece (surface):ABSCover plates:stainless steelKeys:LF, LE, LEb, LD, LCType:diatonicTuning:Richter lowNumber of holes:10Tonal range:3 octavesLength:10.2 cm / 4.0"