EXCLUSIVE WARRANTY: Experience unmatched assurance with our unique warranty, a rare offering in the massage chair industry. This covers all mechanical and electrical components, ensuring your investment is protected for a long time relaxation and comfort. INNOVATIVE MASSAGE TECHNOLOGY: Enhanced 4D massage technique that massage wider, deeper and more rhythmically than the conventional massage rollers. The 4D massage mechanism allows another experience with account for the speed and rhythm of the massage. VOICE RECOGNITION: Voice or speech recognition is the ability of devices to record spoken words or commands by the user. The Osaki OS-4D Pro Paragon has a tiny microphone around the speaker which recognizes 9 different phrases that the user can manage the massage modes by speaking. EFFECTIVE PAIN RELIEF: L-Track with the Heated 4D Back Roller Massage and Full Body Airbag Massage DESIGNED FOR ULTIMATE COMFORT: Heating on Foot Roller with a mild infrared heat ZERO GRAVITY RECLINING: When reclined into the zero-gravity position, the complete weight of your back is virtually supported by the backrest which maximizes the intensity of the massage. In this position when the knees are brought above the chest will optimize your blood flow, in order to relax the body more. The user can experience the most convenience and diverse preferences of zero-gravity system for you. MINIMUM DOORWAY SIZE: 35.2" : We Recommend all customers to have 1-2 inches of extra spaces on top of the minimum doorway size for the chair to go through the doorway or pathway safely. FOOTREST SIZE LIMITATION: Suitable for shoe sizes up to US Men’s 10-11. Osaki OS-4D Pro Paragon is newly upgraded 4D massage chair with L-track and heating roller mechanism. Osaki’s the most popular and innovated 4D massage chair is OS-Pro Maestro, however OS-4D Pro Paragon is revolutionized and upgraded version of 4D Massage Chair. Especially, Paragon is designed with high and luxurious technology systems, which are voice recording, less space enlargement and heating rollers on the footrest. Additionally, the Paragon is designed to feature to customize the heating temperatures by the user. By using the voice control and ease remote control, the user can approach and manage the massage chair easily without any difficulties.