WONDERFUL SOUND: This hand-made 17 keys thumb piano is made from wood-mahogany material and the key is composed of ore steel bars. Our aim is to create a special and different kalimba that can play beautiful and touching melody. Please note that kalimba will be tuned up and tested before shipped. The tune is the same as piano, international C tune. USER-FRIENDLY DESIGN: It is obvious that the keys of kalimba is engraved with notes, which is more convenient than other thumb pianos with stickers on the market. More importantly, the hand-rest curve design on either side of the thumb piano complies with ergonomic principle which helps to eliminate fatigue while playing kalimba. EASY TO LEARN & PLAY: There is a saying that goes like this “Kalimba is a musical instrument that everyone can easily get the hang of it.” With a user manual and electronic songbook together, they can help you right away how to play kalimba and master it in an easy way, from the beginning to the advanced level. All in all, it is an instrument that is easy to play.