a. The product (Deep Grey) with intelligent functions. The backrest tilts back can reach 110-115° for comfortable sitting, and also can reach the angle for sleeping. Control the switchgear for adjustable angle in your needs, which is convenient and flexibleb. The middle of loveseat with storage bucket for daily using items storage and cup-holder for drinks settlement, which is convenient and flexiblec. The middle of sofa with reversible coffee table, stretched been coffee table, closed been normal sofa, which is convenient and flexibled. The bottom of sofa with ambient LED lighting, incredible design makes the life colorful