Introducing the Massage Chair: Zero-Gravity Black Ergonomic Second-Generation SL Track Automatic Massage Feature: Zero-gravity space seat structure for ultimate comfort Unique armrest design, backrest and armrest linkage for optimal support Function: LS type pulley guide for smooth operation Automatic human body detection for personalized massage experience Four-wheel drive for easy maneuverability Automatic manual intelligence for intuitive operation Massage Robot: 6 key massage techniques: "kneading, hammering and percussion," Swedish, scraping, and Shiatsu Back massage with varying techniques for a customized experience Automatic Massage Modes: Exclusive men and women modes Neck and shoulder massage Waist care Traction and stretching Sleep patterns Foot Massage: Kneading and massaging the soles of the feet Ergonomic Second-Generation SL Track: Redesigned to cater to your entire back for a perfect massage Covers the area from the lower part of the head to the upper thigh (depending on the length of the upper body) to the buttocks Space-saving Design: Compact and stylish Specification: Color: Black + White Model: MC-918 Weight limit: 220 pounds Dimensions: 54" (L) x 29" (W) x 44"(H) Package size: 54.7 inches (length) x 29 inches (width) x 31.5 inches (height) Gross weight: 246.4 pounds Power: 180~220W Number of airbags: 36 Applicable parts: neck, back, waist, seat, legs, soles of feet Package includes: 1 set of chairs in 1 carton Assembly manual 1-year warranty If you have any questions, please feel free to contact us. Thank you.