Established in 1999,  Gramyoo. is a professional manufacturer of communication products accessories. It specializes in the production of handset-free headphones, MP3/MP4 stereo headphones, USB data lines, Bluetooth and other mobile phone accessories.

    The company has more than 1000 employees, with more than 16 years of professional experience in technology, production and quality management personnel, the company has been taking the road of innovation and striving to be a good earphone for Chinese people. The company has laid a solid foundation for the development of the company. In order to meet the needs of customers, the company continuously improves itself. The production process and technical requirements are strictly controlled. It has reached or even exceeded the relevant industry standards in technology. It has important technical support for the company's production process, quality control, after-sales service and so on. Guarantee.