Om mani padme hum
This application is best used in meditation,
better use of head phone / Ear Phones (Includes HD Audio).
Om mani padme hum mantra of six syllables in Sanskrit particularly associated with the four-armed form Shadakshari Avalokiteshvara (Chenrezig Tibetan, Chinese Guanyin), the bodhisattva of compassion.
History
The mantra originated in India, brought from India to Tibet, the pronunciation changed because some of the sounds of Sanskrit language was difficult for Tibetans to pronounce.