CPM Optiflex S Shoulder Unit Exercise Physical Therapy and press the button for 01804 and press the button for measurement for one second Short press the Volume Button for volume + Designed to provide anatomical motion for the shoulder with enhanced patient comfort compliance and more beneficial outcomes * Addresses full range of motion capabilities * Easy to use hand control for storing treatment data on memory chip card * Fully synchronized motors allow treatment parameters to be customized to meet patient's specific therapy protocols * Ergonimic rest for healthy arm and fully adjustable chair * Patented Universial Left Right Shoulder design * Folds easily for transport shipping * Lightweight design 55 lbs (25 kg) * Two year limited warranty * CHAT20719 Fleece Upper and Lower Arm Patient Kit Included