A color changing bathtub was something we all needed. It is called chromatherapy, which means to use colors to create an emotional impact. The Sok bath was designed exactly for that and with the touch of a button the bathtub changes color via four LED lights. The price for this bathtub is $8999 USD. Each color is displayed for about 8 seconds starting with the white light and following with three relaxing colors aqua blue, indigo, purple and the green. After that the cycle ends with three warm stimulating colors yellow, orange, and red.