What is the ruling on playing a Quran recitation from a device to repeat after it during prayer, and does that invalidate the prayer?

This act is not appropriate because it contradicts contemplation (tadabbur) and humility (khushūʿ). Furthermore, some jurists have explicitly stated that the prayer of a worshipper becomes invalid if he is corrected by someone who is not praying with him, because it involves teaching and learning. Although the preponderant opinion is that it does not invalidate the prayer, it is better to avoid scholarly disagreement. The worshipper should recite what is easy for him from memory or from the Mushaf, and allocate a different time and place for learning to read, outside of prayer.