Handy Concrete Vibrator ZN35 Portable, Light Weight, Easy to operate and Economical! The vibrator is driven by single phase motor, all kinds of voltage and all stardand of plugs are availabe. Force is transmitted by flexible shaft, speed increased through planet structure, then gain high frequent vibration. Following is our products advantages: 1. Convenient and comfortable to operate due to the design of the motor and light waight 2. Double-insulation for the motor enhance the safe operation greatly 3. Working with the single phase power supply, very suitable for individual use.