Input: A.C 220V/50HZ Power: 120W Measurement: 600x430x411mm Quantity: 2pcs /carton Gross weight: 28.20kgs This product is equipped with armrest and lumbar-support. It is more fit for the middle-aged and old people. It is of the micro-computer control, hand-controller operation. It has two programs of manual and automatic operation with 12-step adjustable vibrating strengh. It has several functions such as sole acupuncture points massage and high frequency spiral etc.