Specifications:Rated voltage: 110V Frequency: 60 HzNeedle diameter: 35 mm/1.38inShaft length: 150 cm/59.06inGross weight: 6.8 kg/14.99lbNet weight: 2.05kg/4.52lbProduct size: 34*14.5*9cm/13.39*5.71*3.54inHow to use1. Before any work on the machine itself, pull the mains plug.2. The brushes should be checked periodically and warm-out brushes should be replace in time, after replacing, inspect, whether the new brushes can move freely in the brush holder, keep running the motor for 15 minutes to match the contact of brushes and commentators. 3. Keep the ventilation slots clear from dirt, clean off the accumulated dust and oil dirt periodically.4. During normal operation, if anything happens ,the power supply should be cut off at once and the tool should be checked and repaired. 5. Regular inspect all mounting screws and ensure that they are properly tightened, should any of the screws be loosen, tighten them immediately, failure to do so could result in personal injury. 6. Don't expose the tool to rain, Don't use power tools in damp or wet location ,keep work area well lit do not use power tools where there is risk to cause fire or explosion.NOTE: To assemble the hose to the unit: it is a reverse thread. Package Including1 × 1300W Concrete Vibrator1 × 1.5m Hose