Seven high frequency massage kneading heads controlled by the microcomputer Five optional massage manipulations The massage force and rhythm has three levels for adjusting Time setting can be selected between 15 minutes and 30 minutes Single-side and double-side design (double-side has one side with bamboo mat) Using 12V power supply ensures safe and reliable operation Technical parameters: Input voltage: DC 12V Output power: 12W Outer packing: color box + carton Four pieces/carton Carton dimensions: 62 x 53.5 x 43cm Gross weight: Single side: 12.2kg Double sides: 15.8kg Conveyance: Quantity/20-foot FCL container: 720 pieces