Tong&Yi Technology Limited was established in 2007 with more than 15 years producing&exporting experience of headphone&earphone&microphone; becomes one of the leading manufacturer in this area.Our factory occupies area of 5000 square meters in Shantou and we set a business office in Shenzhen."Customer first, Quality first,Credit first" is our service concept. We'd like to be a reliable partner of customers to create win-win to both of us!