FIT KING Air Compression Leg and Foot Massager for Circulation, Sequential Compression Device to Relieve Fatigue and Pain FT-009A Featured Functions: 1. 2 massage modes and 3 intensities with a total of 10 different massage techniques and methods; 2. 2x2 airbags inside to provide very good massage experience from foot to calf; 3. 20 minutes automatically shut-off functions, very useful for the elderly; 4. Larger and adjustable size with 2 free size extensions for different people use, calves size can be up to 28.5 inches; 5. Portable design with a free storage bag, take it at home, in office or on trip easily. Specifications: Input Voltage: AC100~240V Output Voltage: DC12V1A Rated Power: 12W