● Intelligent Voice Control and Wireless Speaker: After removing the packing of this installation-free massage chair, you can use the LED color screen controller with 26 function buttons or just say "Hello massage" to wake up the voice control function. What's more, the massage chair can be connected to your device, so you can enjoy the music during the massage.● Ergonomic Long SL Track: Different from the ordinary S track or L track, the SL track covers your neck, shoulder, back, waist, hip and thigh, fitting well with body curve. It offers a large massage area and realizes the fixed point massage. Also, this massage chair is equipped with automatic shoulder positioning detection.● Airbag Massage and Waist Heater and Foot Roller: Having retractable calf frames, waist heaters and multiple airbags that are located on the shoulders, arms, calves and feet, this massage recliner relaxes your entire body and promotes your blood circulation. The foot rollers stimulate the acupoints deeply, and the included removable foot pads can ease the discomfort in the sensitive foot soles. ● 7 Auto Modes and 5 Massage Techniques: This full body massage chair features 7 preset automatic massage programs to make you quickly select the desired mode. Additionally, there are 5 massage techniques, 5 levels of air pressure intensity, 5 speed levels and 3 levels of massage width for you to customize your own massage mode.● One-button Zero Gravity: Simply pressing the button to select the zero gravity position that can incline up to 152°, your knees will be slightly higher than your heart and the pressure on the spine will be greatly reduced. More than that, you can adjust the initial position to read or comfort position to take a nap according to your needs.Please Note: Inside delivery is NOT provided. If a loading dock is not available at your delivery site, you can request inside delivery for an additional fee. Once you request Inside delivery, please make sure the door is large enough to allow the package to pass through. The Packing Dimension is 52 x 32 x 47 inches. The Minimum Doorway Size is 30 inches. Note that if you want to return the product, please be sure to keep the original packaging.