Hydraulic Chair 3900 consumes a power of 110 Volt. It can be upholstered by Ultraleather™ with broad back intended for elbow support. Double articulating pinch-style headrest, complete lumbar support, left/right patient access, emergency shut-off, base rotation of 30 degree with lock make the device easy-to-operate and easy to maintain. It incorporates use of multi-function touch-pad that features w/4 programmable preset positions while accommodating 3 additional controls. Seat height ranges from 17-29. Swing-down locking armrests along with Hydraulic cantilever mechanism adds to comfort.