This is a SUZUKI SU-21 Humming tremolo harmonica. The key is G. It comes with a case, making it convenient to carry around. This is a used item, so there are some minor scratches, but the operation has been confirmed and it plays without any problems. Recommended for beginners and those who play as a hobby. *The color in the photos may differ slightly from the actual product. *Please inquire about selling it as a set with Am.