Mini louderspeaker box included.
What's the difference between D1 and D2/Pro?
D1 is 17 key walnut wood kalimba.
D1B is 17 key beech wood kalimba.
D2 is new version 21 key Kalimba Sapele wood.
D2pro 21key kalimba Black Walnut wood can make different kalimba sounds when you click the button (light changing).
All tuned in the key of C