Infinite Position: Since the built-in dual motor, you can adjust the backrest and footrest independently to the infinite position you want, lift, TV and lay-flat (Max reclining angle: 165°) Size Designed for Petite People: We shortened the length of the backrest and the dimensions of the seat to accommodate the physical traits of the petite person (Recommended Height: 4'6"-5'2") Full-body Vibration & Lumbar Heating: It comes with 8 vibrating points around the chair and 1 lumbar heating point. Both can be turned off at a fixed time of 10/20/30 minutes (Heating function works separately from vibration)