◆ DC 110V~220V home adapter included.                                  ◆ Output: DC 12V 2A               ◆ Air Pressure Strength: Low:25 KPa,Middle:35-40KPa,High:45-48KPa   ◆ AIR MASSAGE STRESS RELIEVER - It has 3x3 airbags inside, so it can provide more massage methods to release stress, relief fatigue and pain for daily use and help for circulation improvement, swollen leg.  ◆ SELECTABLE MODES AND COMPRESSION INTENSITY - The controller has 3 Intensity Levels and 3 Modes selectable, you can choose a setting for an optimal relaxation experience.  ◆ ADJUSTABLE LEG WRAPS SIZE - The calf circumference of the leg wraps can be up to 21 inches. The 2 compression leg wraps are made of high grade finely sewn fabric.  ◆ Automatically shut-off after 15 minutes,