Always striving toward excellence, Enbon has developed to be a market-driven and customer-oriented enterprise. We focus on strengthening the capabilities of scientific research and completing service businesses. We have set up a customer service department to better provide customers with prompt services including order tracking notice. full color led display screen Enbon is a comprehensive manufacturer and supplier of high-quality products and one-stop service. We will, as always, actively provide prompt services such. For more details about our full color led display screen and other products, just let us know.The product runs with no noise. People can't even notice it is running and they will not hear any humming.