Our company has been specialized in designing, researching and developing language laboratory systems in Shenzhen of China since 1999. Now, we have 6 models which are WT-S328, WT-S866, WT-S868, WT-S920, WT-S930 and WT-S950 and provide our products to over 25 countries. For many years, all clients have trusted us and are very confident in our products because our products are easily installed, operated, stable and user-friendly. Our products are your best choice. Please don't hesitate to contact us...