A. The lightweight design is suitable for use. It is applicable to consolidate cement and remove air in the concrete to make the cement tougher. B. It has a 12V 2000mAh battery. A fully - charged battery can run for approximately 1.5 hours, and it takes about 1 hour to fully charge. With two batteries, it can be used for around 3 hours. C. The more the vibration switch is pressed, the greater the vibration frequency of the cement vibrating machine. The maximum vibration speed is 10,000VPM. D. The size is 13.7 X 8.2 inches (350 X 209mm). The cast iron chassis is rust - proof, corrosion - resistant and has a relatively long service life. E. This machine is widely used as a tool for concrete vibrating, and can be used for surface vibrating work and various prefabricated concrete components. It is efficient and durable, with an output power of 250W, strong power, and is fast and stable. It is resistant and comfortable, and is not easily deformed under high - strength bending. F. The voltage is 110V. The model is ZB - 5 0.25kw 110v. The power is 250W, the frequency is 3000 / min, and the weight is 2.5 kg. G. Product usage: Smoothing concrete, walls, etc. H. The plug type is US Plug, which is applicable to Canada, Mexico, Thailand, the Philippines, Taiwan, etc. I. The color is green, and the material is metal. J. Package contents: 1 x Concrete Vibrators. Only the above package content is included, and other products are not. K. Note: Light reflection and different displays may cause the color of the item to be slightly different from the real thing. The measurement error is allowed to be +/- 1 - 3cm.