With the talented in house designer and the strongest R&D team which leads Hanhong to create the unique and excellent products to worldwide clients, all of our products have our private toolings with design patented, we are expert in making some difference whether on the designs or the acoustic technology so as to bring the good branding value for our customers. Also we have strongest R&D team including the electronic engineers, mechanical engineers, acoustic engineer and software developing engineers who assure the enough capacity of doing customized ODM projects with our customers.