3F technology company starts business from 2007 and establish a production center around ningbo , zhejiang. L create idea and develop products for pest control and air purifier according customer requirements. We are the manufacturer of ultrasonic pest repeller. commit to top quality , drive for continuous invention and provide the unique life products for you. are an eco-friendly company, all the material comply with ce requirements . The products are designed and produced in a way , which minimize the consumption of natural resource pay great attention to the employee training. All the engineers and works should be trained two weeks before they starts the job. All the products are designed and produced by our employee. We focus on the design and produce ultrasonic pest control and air purifier products. When it comes to customer's satisfaction, we always the world leader. We are the market leader in pest control field , and we keep developing new products for our customers. We also provide oem, odm service according customer requirements.