1.0 Varies with device
Surah muzamil contains 20 verses.this surah has many blessings it is stated that :a person who recites this Surah will never face bad times. The person who recites it in the Isha or Tahajjud prayers always remains pure of heart and even dies while he is in a pure state.
This application has also audio with in it. so you can also listen to this.