The Frequencer® provides airway clearance therapy and promotes bronchial drainage by inducing vibration in the chest walls. This device is intended to be a component of chest physiotherapy by providing a convenient method of external thorax manipulation. Hospitals are already acquainted with ultrasound and scanners, which operate at a very high frequency, the Frequencer® generates low frequency within the range of 20-65Hz and offers an adjustable intensity based on the patient’s condition. Sound used at low and very low frequencies offers a completely new range of specific and targeted treatment possibilities in airway clearance.