2. Germany equipment:The Sino-German joint venture DMG CNC planer spring machine,guarantee the sound spring intonation.
3. Thicken Copper plate, 1mm copper plate makes the harmonica sound more clear and melodious.
4. Cover design:thicken copper cover plate,fine printing design with enough hardness,it is not easy to deform with long time playing.
5. Sensitive inflexion key and blow hole: High hardness metal inflexion keys,solid and non deformation, switch to normal tone and chromatic, can play any complex music.