This new development has been designed for professional long-term stethoscope monitoring. The 4 sensors with highly sensitive piezo elements record the lowest noise, especially voice, and save it on the integrated digital recorder and this for months thanks to the additional Vox control. The PKI 2180 Professional Quadro Stethoscope Recorder is positioned at walls / windows or door frames as fast as lightning using the delivered „adhesive paste“. A wide variety of applications is possible and these in optimum audio quality. PKI 2180 offers highest possible audio transparency and nothing escapes its notice.