CrossWave Max combines vacuuming and washing floors at the same time. 36V Li-ion battery gives up to 30 minutes of cleaning. Wifi Connected capabilities with the Bissell Connect app. Multi-surface cleaning. Edge cleaning. Two-Tank technology. Self-Cleaning cycle. 3-in-1 Docking Station. 28oz Water tank. 18.6oz Dirt tank. A portion of sales for this vacuum goes to the Bissell Pet Foundation. Includes: Two 8oz Hard Floor Tough Mess + Odor Eliminator Formulas. Two Multi-surface brushrolls.