Hohner 2509C Echo 24 Hole Tremolo Harmonica - Key of CThe Hohner Echo 48 Tremolo Harmonica is a sleek and elegant contemporary of classic mouth harps and one of the high quality products on today's harmonica market. The Echo 48 comes with a chrome finish in the key of C, producing a beautiful tremolo sound. Specifications Color: Chrome Material: Maple comb, brass reed plates 24 Double holes, 48 reeds Key of C Special tuning creates the tremolo's distinct sound Primarily used in ballads, folk, reggae and