The Stethophon® 04 is a listening device for detecting and amplifying structure-borne noise of all types. It provides undistorted sound reproduction even for very low noise.
In addition to a version with cable headphones, the SDR version with wireless headphones is available. Sewerin Digital Radio (SDR) offers sound transmission of the same quality as with a cable connection. Eliminating the cable increases working comfort significantly. The headphones and the device are automatically connected by bidirectional radio when switched on.