If you want to listen the last parts of the music or movie that has just played, how would you do?
When you want to repeat some period of music, what method do you use?
Do you use 3 sec back button? No, No. it's awful.
This is smart world.
Speater is the answer.
Speater shows you the smartest way to find position that you want to move.
Let me show you how to use Speater.
Let's play song.