The MobiCushion Alternating Air Pressure Cushion provides a consistent cycle of alternating airflow for effective pressure relief and comfort, helping to prevent and treat pressure sores. Similar to an alternating pressure mattress, this pressure relief cushion inflates and deflates the air pressure flowing through the air cells to improve the user's circulation. The MobiCushion Alternating Air Pressure Cushion provides customizable comfort and a solid foam base for postural stability. This lightweight and portable seat cushion helps to prevent and treat pressure sores by providing a consistent cycle of alternating airflow for optimal pressure relief and comfort. Similar to an alternating pressure mattress, the cushion improves the user's circulation by inflating and deflating the air pressure flowing through the air cells. The static mode setting provides a stable, comfortable cushion. The alternating airflow mode provides alternating air pressure levels through the four air cells to stimulate the tissues. This innovative seating cushion provides individualized seating comfort and conforms to the user's particular needs by using pressure sensor technology for automatic control that will make intuitive adjustments for the user's body weight. The user-friendly touchpad control provides visual and audible operating status and fault indication. The user can control static or alternating pressure distribution modes, air-pressure cycle time, five comfort level settings, and view the low pressure/low battery alarm mode. The firm foam base with medial thigh support provides postural stability and prevents thigh adduction. The cushion can be plugged into a wall outlet when in use, and the rechargeable lithium battery provides up to 12 hours of operation on a single charge. The water-resistant 4-way stretch cover is a breathable, vapor-permeable, low-shear fabric to provide protection from pressure injuries and skin tears. This pneumatic seat cushion is used in medical facilities, rehabilitation centers, manual or power wheelchairs, as well as non-wheelchair seats. Wheelchair users will find the MobiCushion Alternating Air Pressure Cushion provides exceptional pressure relief and comfort. MobiCushion Alternating Air Pressure Cushion Instructions MobiCushion Alternating Air Pressure Cushion Specifications: Weight capacity: 264 pounds. Dimensions: 17 inches wide, 17 inches long, 4.3 inches high. Weighs: 6.9 pounds. Color: Blue. Material: Polyester, Foam. Care: Cover is machine washable. Power: 12 Hour Lithium -Ion Battery.