World Link Technology Development (China) Co., Ltd, established in May 2010 and evolving from a factory founded in 2002, is a manufacturer and trading company based in Shenzhen, China. With over 200 employees, the company specializes in the development, manufacture, marketing, and after-sales service of Bluetooth audio products. Their product range includes single channel Bluetooth earphones, stereo Bluetooth earphones, call number display Bluetooth earphones, MP3 Bluetooth earphones, Bluetooth headsets, and hands-free Bluetooth devices. As a senior member of Bluetooth SIG, World Link Technology Development holds BQB certification, enabling global market access for their products. They collaborate closely with Bluetooth chip manufacturers like CSR and ISSC, leveraging significant investment in R&D. The company offers comprehensive OEM and ODM services, alongside technology consultation, new product upgrades, shipment tracking, and after-sales support.