The Dan da (lithophone) is a set of stone slabs of different sizes and shapes fabricated through an elementary technique. Lithophone is composed of a set of eleven resonant stones.
The examination of the stone slabs found at Binh Da archaeological site in the southern Dong Nai province has revealed that this kind of instrument may have existed for over 3,000 years.
For some ethnic groups in Tay Nguyen (Central Highlands), the stone slabs are sacred and preserved as family treasures played during grand ceremonies for the gods. For others, the stone slabs are used for setting up crop-protection devices.