PeP is a concept of a smart stethoscope which is relatively smaller than conventional tubular stethoscopes. One can listen to internal sounds of the human or animal body via headphones with the help of 3 microphones at the bottom, by comparing the results obtained with cloud the PeP can indicate the severity of 'cold' level in the lungs. It can even measure the BP and BPM by the principle of photoplethysmography. It will be handy equipment whenever needed.