Feature: 1. On the one hand, there are four "DO" sound positions on the mouth of the harmonica, on the other hand, ultrasonic welded 4 white H‑shaped parts keeps function to identify main sound position. 2. Equipped with crisp pronunciation, bright sound and good air tightness to keep solid structure, harmonica's reed adopts high‑quality phosphor bronze tone spring with accurant tolerance ratio and it enables to feature characteristics of phosphor bronze tone reed. 3. Harmonica's left side keeps tonal mark, which makes you see tonality at a glance and learn music theories better. 4. Good water resistance depends on that harmonica comb is is made of ABS resin material, which can be transparent and bright. 5. Service life of the base plate can be extended by electroplated surface to prevent the saliva from corroding. 6. Reed vibration can be increased while the sound is more loud and full, which adopts 1 .2mm thickened pure brass base plate. Specification: Item Type: Harmonica Model: KS-24P Reed Material: Phosphor bronze Base Plate Material: 1.2mm brass Cover Plate Material: Ti gold stainless steel plate Comb Material: ABS resin Color: Black / Gold (optional) Key: G Key / G # Key (optional). Package List: 1 x Harmonica Bag1 x Harmonica Cloth1 x Chinese User Manual1 x Harmonica