feeltone has 33 years of building, tuning these drums

In 1988, Ingo Böhme the founder of feeltone developed a technically challenging technique for tuning the large tongue drums  and is continually improving their sound volume till then

Wood Tongue Drums from feeltone:

Tinka Tong -  6 note Alto d-minor and 10 note Bass A-minor
The small tongue drums speak in the language of forests, trees, and wood. They convince through their handiness, lightness, and clarity of tone. With the addition of the Tinka Tongs we do give our repertoire of tongue drums a mobile version which is easy and fun to play. A broad range of different playing techniques can be discovered, including playing with the finger in addition to using the mallets.

Baba Tong - Double Bass in F-moll
This extraordinary tongue drum convinces with the two playing levels right beside each other. This design allows the player to place the Baba Tong between the legs where it rests safely. Now the tongues can be beaten with both hands as well as with mallets; the sound is extra deep for such a small box. That the playing areas are right next to each other, make it easy for the hands to switch the levels.

XXL Tongue Drums in two different sizes: bass and tenor - in ash or padouk
Couch-Tongue Drums are suitable for kids and adults to sit at both ends of the body and play together. The large Tongue Drums have feet on one side, which makes it possible to flip the drum over, so a child or grown-up (larger Drum) can lay on top. The playing surface is on the side and can be played. In both positions, this melody drum can be played with mallets or hands and fingers. All Couch-Tongue Drums have grip holes on the side for better transportation. The selected and air-dried Padouk wood from Nigeria comes from controlled and certified farming and harvesting.