Hoyer Full Back Padded Sling Large On Sale 777 Wall Transformer Style:Pair (Left & Right) 777 Wall Transformer 2 Channel Electrotherapy * Easy to add modularity allows the addition of two additional channels of electrotherapy light therapy or a battery module * High contrast 5 (13 cm) FSTN LCD monochromatic user interface * Two independent electrotherapy channels expandable to four independent channels * Multiple waveform electrotherapy six clinical waveforms: Interferential Premodulated High Volt Russian Symmetrical Biphasic and Microcurrent * Documentation of treatment data with Patient Data Cards * User defined protocols for your specific needs * Dual frequency ultrasound at 1 or 3 For use on the Advance Series lifts * Incorporates integral boned head support and padded leg pieces * The correct size will fit snugly and give full protection for residents who go into extension or have involuntary movements or behavioral problems *