Ergonomic Air Lumbar Support for Car Seat 4 Way Adjustable Back Cushion Reduces Waist Pressure Features： 1、ADJUSTABLE LUMBAR SUPPORT: Easy to operate with one key electric remote control, providing comprehensive massage for the waist and back. Available in 4 directions, up, down, front, back, offering maximum comfort and support. 2、SUPERIOR MATERIAL: Crafted from high grade ABS materials and specially treated for durability. Conforms to the curve of the waist, reducing pressure and fatigue during long periods of sitting, enhancing driving comfort. 3、CUSTOMIZABLE AB CONTROL: Various switch modes allow for individual or simultaneous control of the ab. The air pump inflates and deflates the ab to provide adjustable lumbar support. 4、ENHANCED DRIVING COMFORT: Minimize back ache and fatigue with maximum lumbar support. Suitable for cars, RVs, and trucks, this lumbar support ensures a comfortable and ergonomic seating experience. 5、EFFORTLESS ADJUSTMENT: With the touch of a button, adjust the lumbar support without manual handling. Enhance driving comfort and reduce strain on the lower back with this electric remote control lumbar support. Specification： Item Type:?Electric?Air?Lumbar?Support?System Material: ABS Model Number: HS-2ASO4M Rated Voltage: 12V Operating Voltage Range: 9-14V Rated Power: 10W Empty Inflation Rate: 4.5L/Min Maximum?Stroke: 60mm Plate Size: Approx. 270mmx205mm / 10.63inx8.07in Fitment: For Car RV Truck Package List： 1 x Seat Lumbar Support 1 x Accessory