Elevate your quality of life with our electric full body massage chair! It offers you many functions to choose from. Begin with zero-gravity, this latest massage system enables you to relax in the weightless state, giving you 3 positions to adjust. And then there is back heating for blood circulation, bluetooth speakers for music, and negative oxygen ion function for fresh air. Not to mention, it has 6 auto programs, 28 airbags, and foot rollers to provide at least 5 massage techniques through your body. This massage chair features 53'' Sl track with shoulder detector tech to fit your body shape and curve to achieve the best massage. The backrest has a adjusting range from 129° to 157°, and so as the calf part of 6'' extendable distance.