Bean-filled vibroacoustic chair cradles and positions any child up to 100 lbs. The vibroacoustic system provides full-body relaxation and stimulation. Features a single 12", full-range, fuse-protected vibroacoustic speaker installed in the chairs back. Connects to any stereo rated 20 - 200 watts. Easy-to-clean, durable marine vinyl with sealed zippers to prevent loss of beans. Seat measures 19 x 19. Overall chair measures 30"W x 30"L x 35"H .Weighs 30 lbs. Includes instructions and 15' of cable.