Labrador 21" Walk Behind Scrubber is a sustainable, newly innovative auto-scrubber that features an all time low decibel level for optimal cleaning at any time of the day. The new Labrador Series is designed to provide total control over the cleanup work. The features have been improved down to the last detail – providing you with ease of use and better productivity. It ensures a maximum productivity, while the battery life of up to 3.5 hours allows you to work continuously without interruptions.The self-levelling system ensures constant high cleaning performance. The mechanical or electronic system allows for impeccable cleaning by fully adapting the brush pressure with floor unevenness with immediate reactions.