Packge Include 1 x drywall sander with vacuum attachment (26ft power cord)12x sanding discs(A80/100/120/150/180/240)1 x set of safety kit(1 x goggle 1 x earplugs, 1 x mask )1 x carrying bag1 x hook-and-loop fastener1 x dust collection bag3 x vacuum hose connectors1 x dust extracting hose1x hex wrench2 x carbon brushes Gioventù Drywall Sander with Vacuum Quickly&Efficiently Unique Patented Ball-Joint Design - 0-Resistence Easy Automatic Leveling95% Efficient Dust Absorption - ensuring a safe and clean working environmentPowerful 6.5-amp Brass Motor - sanding the surfaces quickly and efficiently Power Cable: 26ft Dust Hose: 10ft Weight: 11.7 lbs Sandpaper Diameter: 8-2/5” Paper Fitment: Hook & Loop Variable Speed: 900-1800 RPM Extendable Handle: 4.9ft-6.2ft Voltage: 120V，60Hz 360-degree Swiveling Base The base can swivel 360 degrees to easily fit any corner, edge or wall thereby ensuring that the entire wall is smoothened out evenly. Detachable Chassis Edge There’s a detachable sanding disk you can move quickly, getting access to tight corners & perpendicular walls. 7-speed Control System The device has 7 variable speed options that you can adjust between 900 and 1800 RPM to optimize efficiency. TROUBLESHOOTING PROBLEM: Motor is not working Cause: 1) Wires in the main plug or in the socket are loose. 2) The switch is faulty. Solution: 1) Have the socket and plug checked by an authorized technician. 2) Have the switch replaced by an authorized technician. Unusual noises occur during operation/Motor is not working properly. Cause: 1) Switch contact has failed. 2) Components have jammed. 3) Too high of load has been applied. Solution: 1) Have the switch replaced by an authorized technician. 2) Have the tool checked and repaired. 3) Using less pressure during sanding operations. Motor gets hot Cause: 1) Foreign substances have gotten inside the motor. 2) Too high of load has been applied. Solution: 1) Have the foreign substances removed. 2) Have the switch replaced by an authorized technician. Frequent sparks occur on the commutator Cause: 1) There is a short circuit in the motor(armature) 2) Carbon brushes are worn out or jammed. Solution: 1) Have the armature replaced. 2) Have the carbon brushes checked.