Wash basin (automatic) ,the time ,dose, dynamic are adjustable Automatic shampoo chair /bed ,replace hand to wash hair . beauty salon equipment , salon equipment . ... , ROSH certification and KTL certification, and passed ISO9001:2000 besides.2.Q: How about the quality of the shampoo machine ?A: Great . If ... sale service support .Warranty : 1 year only parts ,free replace . wash basin (automatic)