... Low noise level 4,Suction motor from Ametek, USA squeegee Floor Scrubber Machine FS 20W1, Battery power 24V2,Huge tanks3,Low noise ... much more endurable and low noise levelWith power indicator and working time indicator, it will be better for after-sale service ... board charger, you can charge the battery easy, brings high working efficiency ModelFS 20WBrush Dia.(mm) 508Squeegee Width(mm) 800Solution ...