The Stethophon® 04 is a sound detector for recording and
amplifying structure-borne oscillations of all kinds. The oscillation
sensor provides undistorted sound reproduction even when the
noise is barely audible.
Besides the cable headphones, a wireless version is available
including SDR digital radio. The Sewerin Digital Radio (SDR )
offers a sound transmission quality equal or better than by cable.
By going without the cable, the comfort of work is improved
considerably. Headphones and detector connect automatically
by bidirectional radio link when switched on.