After Sales Service - Good Ideal for Your Family & FriendsIf you have any questions, please check the MANUAL and CONTACT US! 7.2-Amp POWERFUL COPPER MOTORMYTOL drywall sander with a 7.2AMP copper motor provides adequate power in sanding work, brings you an efficient grinding experience, and 900-1800RPM 6-level variable speed Adjusts according to your different needs to obtain different grinding effects. The sander can easily complete the work of drywall sanding, floor sanding, ceiling sanding, etc. AUTO DUST VACUUM SYSTEMThe power wall sander with vertical suction and 10-hole sand disc design has a stronger vacuum effect and is designed with a unique 3-in-1 structure of Ring Cleaning Brush + Flexible Dust Collection Hose + Dust Collection Bag, minimizes cleanup work. Creating a healthy clean working environment for you. UNIQUE BREAKTHROUGH DESIGNDrywall sander with vacuum adopts a 9-inch + 360° rotatable sanding disc to achieve uniform polishing, a detachable sander