Prompt: Smart office chair, soft materials, independent armrests, head pillow and backrest are connected with an axis, the back of the head pillow concave arc fits the head and covers the ear, the back of the chair has a lumbar support, the foot under the chair seat, {the foot is spread, the foot is put away}, the chair seat has three adjustment buttons

Prompt: A smart office chair, soft materials, independent armrests, head pillow and backrest are connected with an axis, the back of the head pillow's concave arc fits the head and covers the ear, and the back of the chair has a lumbar support, the foot under the chair seat, {the foot is spread, the foot is put away}, the chair seat has three adjustment buttons