Empty weight (kg) / Full weight (kg): 590 / 2590 Number of people on the lounger/seated: 2 / 5 Water massage nozzles: 72 Air massage nozzles: 12 Air adjustment knobs: 4 3-way valves: 2 Heating: 3Kw Massage pump, 2-level: 1 pz (2,5 HP) Massage pumps: 2 pz (2,5 HP) Control system: Balboa (USA) Anti-frost system: Yes Ozonator: Yes Colour therapy: Yes LED coloured light at water level: Yes Waterfall with coloured light: Yes Aromatherapy: Yes Smartphone connection for music: Yes Pop-up loud speaker with coloured light: Yes Wi-Fi ready: Yes Coloured light along the outer cladding of the tub: Yes Side panels: Yes Thermal cover: Yes Steps (in colour to match outer cladding): Yes