????????? ?????? ?????? ?????????????????? ???????? ???????????????????????Battery Electric Spin Scrubber Has 800 Rpm/1000 Rpm/1200 Rpm Three Power Modes, Especially Max Mode, The Power Is Very Strong, Originating From The Use Of A Double-Bearing Rotary And 21V High-Power Battery (Other Scrubber Power Only 600 Rpm). Note: For Stubborn Stains, Soak The Scrubber In Detergent For 2-3 Minutes Before Deep Cleaning With A Scrubber. Please Don'T Press The Scrubber With More Than 65 Lbs Of Weight, Otherwise It Will Trigger The Automatic Power-Off To Protect The Battery Mode. | | ??????????? ?????????????? ???????????????? ?????????? ?????????????????The Smart Display Shows The Percentage Of Power Remaining On The Left Side And The Different Power Modes On The Right Side. When You See That The Power Is Below 25%, It Will Prompt You That You Need To Recharge, Very Convenient And Smart. Additionally, The Smart Display Detects Battery Health For Better Battery Protection, Which Is A Feature That Other Electric Floor Scrubbers Don'T Have | | ???-????-?? ?????????? .