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, and negative oxygen ion function for fresh air. Not to mention, it has 5 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 degree to 157 egree and so as the calf part of 6" extendable distance.