The Brookstone Mach IX is a smart 4D L-Track massage chair, controlled by a Touch Screen Display with 18 Auto Programs that include Full Body, Partial Body, Stretch and Global Massage Techniques. With an Ultra Quite 4D L Track Microchipped VarioMotion ™ Robotic mechanism, the Mach IX can massage the entire length of your back, from your neck to your glutes. In addition to sole rollers, foot & calf compression, the Mach IX has heated knee compression massage that is adjustable to massage the upper calf. The Mach IX is equipped with technology such as Bluetooth speakers with multi color chromotherapy lighting, Alexa home voice control compatibility, wireless charging for mobile phones & a USB port. Additional features include a multi-language user interface on the remote control, Quick Keys, memory function with 3 settings, and a metallic coating on the housing for a very sleek modern look and finish.