AC plug.
This is the foldaway foot spa that soothes aching feet with a bubbly rolling massage, heat, and red-light therapy. Foldaway Triple Therapy Foot Spa The preferred heat level, massage roller speed, and are easily selected from the removable remote, and the spa, massage, and red lights can be used alone or in any combination.. Open 10 H x 131/4 W x 16 D, folded 5 H x 131/4 W x 16 D.