The Bryk RL S1 is a transducer for all kinds of acoustic musical instruments. It transduces vibrations into an acoustic sound.
It is a passive system that just need to be easily sticked on your musical instrument.
This German technology was developed to use as well „percussion“ playing style.
You can regulate with the built-in feedback control unwanted side noises.
The S1 has a big range of usage in acoustic musical instruments like Guitars, Ukuleles, Saz, Cita, Guzheng, and many others.