3 Foot Low Noise Household Brushless Ceramic Electric Machine (350W 25cm ) Features: This type of wheel has a beautiful appearance and its surface is treated with a powder coating. The ceramic machine has a compact structure and does not take up too much space. Easy to operate, good performance of preventing clay splashing. The wheel rotates smoothly, the noise is low, and the direction of rotation can be switched clockwise or counterclockwise. Single-phase three-wire connection, safe and reliable.  Specification:  Material:Metal+Aluminum Alloy Motor:Brushless Motor Rotation Speed:0~300r/min Rotation Direction:CW and CCW Noise:<60dB Package List: 1 x Ceramic Machine Users Manual:  First check if the machine is stable. If not, adjust the bottom foot and connect to the power supply. Turn on the earth leakage protection device and turn on the clockwise or counterclockwise rotation switch. Press the foot pedal speed controller to slowly adjust the speed. Note: 1. Do not press the rotating wheel with your hand while the machine is working. 2. When the wheel is rotating, do not immediately switch clockwise/counterclockwise, waiting for the wheel to stop rotating. 3. Do not pour a lot of water into the pool. Once a large amount of water has splashed into the pool, the power should be turned off and cleaned immediately. 4. Students and children should use this machine under professional guidance. 5. After use, the machine should be powered off and cleaned in time.