DLL is the first 4-in -1 (Audio + Video + Text + Exam) multimedia language laboratory software system on the market.

As a combination of pronunciation practice, video presentation, audio discussion* and exercises, DLL creates a genuinely interactive teaching and learning environment. There is no need for hardware devices, as DLL provides all functions that existing hardware systems have, plus a set of unique advanced features.

Just go ahead and polish your language pronunciation now!

* XCLASS Professional is required for the above-mentioned feature.