Function: Hydro massage function with 37 sets of hydro nuzzle Bubble function with 19 sets of nozzle Fm radio receiving Constant temperature function Ozone sterilization Water filter Computerized control panel to control hydro massage, bubble, temperature setting and fm radio Water heating and temperature setting Water whirl function Underwater light B. Specification Power for hydro massage: 2x2p pump Power for bubble: 1x1.5p pump Water filter pump: 1x1p pump Constant temperature thermostat: 3kw power Underwater light: 4 x dia.40mm Size of massage nozzle 11 sets dia.90mm 26 sets dia. 50mm Size of nozzle for bubble: dia. 50mm 19 sets Body of tub is made of acrylic Voltage of power: 220v Frequency of power: 50hz~60hz Welcome to our web 3w dott hottubspa dott cn. 195*195*100cm, wood rack