Spray trigger (for cleaning solution) integrated into the wiper. 110ml Waste Water & Cleaning Solution Tank Capacity. Up to 20 mins operating time. Approx. 4 hours battery charge time. 12W Rated Power of Window Cleaner. Light weight 0.9kg. Power Lithium Battery. Battery Voltage 3.6V. 280mm Working Width of suction head. It comes with 60ml concentrated cleaning solution bottle.