This Advanced Pressure Relief Cushion System Is Especially Designed For The Patients To Use On Various Mobile Devices * The Mobifree Is Fully Portable  With Capabilities For Both Battery Power And Wall Outlets * With The Advanced Pressure Sensor Technology And Unique One Piece Air Cell Pad Design  It Provides Alternating Lowpressure To The Patients Consistently * Suitable For Most Wheelchairs * Portable Pump With Carry Bag And Cushion Design For Easy Mobility * Adjustable Patient Comfort And Alternating Cycle Time * Features Visual And Audible Operating Status And Fault Indicators * Unique Seat Cushion Design * Stretched  Vapor Permeable  Water Resistant And Fire Retardant Coverlet * Maximum Patient Weight Capacity Up To 120 Kg Or 264 Lb * Therapy Mode:static / Alternate * Pressure Range(mmhg):40-100 Mmhg * Alarm & Alarm Mute * Low Battery / Low Pressure * Pump Dimension(l X W X H):25 X 12 X 5.7 Cm /9.8  X 4.7  X 2.2  * Pump Weight:1.0 Kg / 2.2 Lb (battery And Adapter Are Included) * Battery:rechargeable Ni-mh Battery * Electrical:ac 100-240v 50/60 Hz Universal Adapter * Cushion Arrangement:contour Foam Base & One Piece Air Cell Pad (4 Air Cells) * Cells Material:nylon/pu * Coverlet Material:stretched  Polyester/pu * Cushion Dimension(l X W X H):43 X 43 X 10 Cm /17  X 17  X 4 . Cushion Weight:1.1 Kg / 2.4 Lb.