Download this free app and listen to Ayatul Kursi from surah al Baqara Quran chapter 2 . You do no need to download mp3, just install the app.No wifi or data needed
If you want to recite text, check out my other apps.

includes the following reciters:

Abdul Basit
Abdul Rahman Al-Sudais
mishary rashid alafasy
Saad Al-Ghamdi
Maher Al-Muaiqly
Muhammad al-Luhaidan


Hazrat Abu Hurairah radiyallahu anhu reported Allah's Messenger sallallahu alaihe wasallam as saying, "If anyone recites in the morning, Ha-Meem (of Surah Mumin) to Ilayhil Maseer (3rd aayah of the surah) and Aayatul Kursi, he will be guarded (from all kinds of evil) by them till the evening. And if anyone recites them in the evening he will be guarded by them till the morning."

(Tirmizi)

Hazrat Abu Umamah radiyallahu anhu relates that Rasoolullah sallallahu alaihe wasallam has said, "Whoever recites Aayatul Kursi after every obligatory prayer nothing except death prevents him from entering heaven." (That is say that the only thing that is preventing him from entering heaven is death. When it will come, he will go straight into paradise).

(Nasai)