*220-240V~50/60Hz 90W&350&450W *90Watt version:keeping water warm ; *350W&450W version: PTC Heating cool-water; *90Watt Function: (0)Off - (1)Bubble/Vibration - (2)Warm/Infrared - (3)Warm/Infrared/Bubble/Vibration; *350&450Watt Function: (0)Off - (1)Bubble/Vibration - (2)Heat/Infrared - (3)Heat/Vibration/Bubble/Infrared; *Special Motor for strong vibration feeling; *Lift-up handle design; *Double wall for the tub; *Casing design for medicinal materials; *6 Superb Roller massagers in bottom ; *Acupuncture point design on bottom; *Inner depth:13cm Water capacity(highest line) 7.3L;