Special design cuffs that insert air. The air chamber repeatedly expands and contracts. Gives pressure to the body's limb. To help blood to circulate smoothly. Blood to flow regularly throughout the body. Bring relaxing heaven soothing relief to your legs. AC Power: AC100-240V (50/60Hz) The Plug Type is type C for Korea and with the multi plug you can use it with your 220V to 110 V voltage converter. Features: Low-noise/High volume air-pressure used LED Window to check for function and operation state Various massage program (Automatic/Manual) Sophisticated design and portable handle equipped 1. Product Name: Limb Circulation Pressuring Device 2. Model Name: UAM-8100 3. Item Permit Number: 09-619 4. Electric Rated Voltage: AC 220V 60 Hz 5. Power Consumption: 30W (+/- 10%) 6. Electrical Protection Type: Class 2 Device, B-Type Mounting Section 7. Product Usage: This is a device that periodically inflates the sleeves to pressurize the limbs to prevent blood from pooling. Product Configuration: Please note that "This is a Medical Device." Main Body, Air Boots (1 Set), Air Hose Set, Foot Massage Plate (1 Unit), Remote Control, Battery (1 Set), Instruction Manual.