This sample language exercise 'auditory synthesis' contains 1 series with 10 words each (the full version contains 10 series, so 100 words). First choose your series. Click on the speaker (1 or more times). The word to be searched is pronounced phonetically with individual letters. Try to pronounce the word to be searched out loud and click on the matching picture. If there is an error, you will hear an error message. With a correct answer you hear the word. Do the 10 words like this. At the end you will see your result (%). Headphones make the sound even better. Works best on tablets.