Description: JDR Trochilus 10 Holes Chromatic Harmonica Key of LF Armonica Valveless Harp Chromonica with Case for Adults, Professionals, and Beginners 【Unprecedented Design】 The reed arrangement of the Trochilus richter/blues tuning harmonica key of LF is the same as that of a traditional blues harmonica. There are no valves but this does not affect the air tightness. Therefore, the Trochilus can retain the timbre of a ten-hole harmonica largely and can bend like it does.【Newly upgraded Slider System】When the slider isn't pressed, it's a traditional blues tuning. When the slider is pressed, the whole harmonica is raised by a semitone. At this time the vocal range is three octaves.【0.28lbs Portable Weight】The Trochilus is only ½ the size of the chromatic harmonica, measuring 5.27 * 1.22 * 0.78 inches. There is only one row of mouthpiece holes, which is the secret to the small size of the harmonica.【About Trochilus】The cover of the harmonica is made of 0.5mm chrome-plated copper, and the reeds are high-quality phosphor bronze. The shape of the comb is a trapezoid design, with a short tail and ergonomic design making it more comfortable to hold.Package includes a richter/blues tuning harmonica key of LF, premium decorative box, dust cloth and introduction manual.