Elite Plus Massage Chair the extrema the 3d intelligent massage technology comes with an adjustable head cushion that can be adjusted freely within 20 cm to fit for different body height and give you exclusive head massage. maximum extended led where the calf rest length can be adjusted according to the user's height. Waist stretch, this creative function is based on the chiro conception, it can widen the space between vertebral body to avoid bone spur and cartilage oppression on nerve.