Product: Air bubble massage Item No.: HS-AMQ-01 Voltage: 100-120V- , 220-240V- Power: 550 W Frequency: 50/60 Hz GW.: 2.2 kg NW.: 3.9 kg Dimension of color box: 420 x 280 x 300 mm Certification: CE GS EMC To help warm bubbles variable strength control powerful bubble action soft mat fill with air to cushion your body.