Advanced 4D Technology Ergonomic SL-Track 3 Levels Adjustment Back Heating Body Scanning True Calf Kneading 2 Stage Zero Gravity Powered Automatic and Manual controlled Footrest Automatic Extendable Footrest 12 Unique Auto Programs 6 Massage Styles Bluetooth Audio Wireless Phone Charger Unique side Panel & Quick Control with Rotary Switch Design Motorized Phone Holder