DONGGUAN CITYSING-E is specializing in Bluetooth Speaker since 2015. Based on our innovative design concept and product R&D strength, we have produced many outstanding BT Speakers, which had exported to South America,Europe,Mid-East,South-Eastern Asia and so on. With more than 400 staffs in nine assembly lines to provide the customers with first-class products and service.We are looking forwarder for your coming and working with you for win-win cooperation.