Changsha Tianxin Yunhe Technology Co., Ltd is a high-tech company was founded in 2010,our factory is located in Longgang district ,shenzhen,with 1000 square meter workshop and 100workers,We are specializing in TWS earphones and smart wearable products,We have the strictest requirements of quality control,Our R&D dept have specializing in developments and design the new products ,QC Dept have 6workers ,every product will be 100% tested before they came to our customer,and we provide 12 months as warranty for all of our products at the same time,our products have been well-received on the market in over 80 countries including USA, Canada, Malaysia, Singapore,UK,Germany, France,Iran,India, Spain, Kenya, Algeria, Australia, New Zealand, etc.,