Bissell Crosswave Cordless Max is a 3-in-1 vacuum cleaner that vacuums, mops, and helps dry at the same time. Designed for sealed hard floors and carpets, and rechargeable, it features a 36V lithium-ion battery for up to 30 minutes of run time. Includes a self-cleaning cycle and enhanced edge cleaning. It has one clean water tank and another dirty water tank.