ALTERNATING PRESSURE SEAT CUSHION FOR DECUBITUS PROPHYLAXIS AND THERAPY alternating pressure seat cushion with rechargeable battery and viscoelastic foam frame two control units included in delivery, inclusive rechargeable battery for patient weights from 30 to 100 kg (66 to 220 lbs) flexible and adjustable pressure cycle static function protective transport bag allows easy fixation to seat or wheelchair for patients, who are primarily in a sitting position