I've only tuned it, and haven't touched it much. The mini kalimba wasn't tuned when purchased, and tuning a mini kalimba is particularly time-consuming, so how about it for those who want to use it right away or beginners? I did tune it, but it's not a professional-grade item, so it will go out of tune with use or carrying. Heart-shaped acrylic and wooden kalimba, with scale numbers, perfect for beginners. - Type: Set of 2 heart-shaped kalimbas - Material: Acrylic and wood - Scale Numbers: 8-note range, with scale numbers 1-8 - Accessories: Includes black and red straps