Can you listen to music with earbuds during adoration?
I’m not aware of any Church regulation on wearing earbuds during adoration. But adoration chapels do have guidelines for chapel conduct, usually with a reminder to turn off cell phones (or place on silent/vibrate mode) and all electronic devices. This is to minimize distractions and to place the focus where it belongs: on Jesus and his presence. "Be still, and know that I am God," says the psalmist (Psalm 56:10).
Why not unplug for an hour when you're with the Lord? Sadly, we live in a culture of noise and distraction where earbuds, cell phones, and Muzak drown out the beauty of silence. In an address during a pastoral visit to Turin, John Paul II reminded us of the value of silence: "Our age needs to rediscover the fruitfulness of silence in order to overcome the dissipation of sounds, images, and chatter that too often prevent the voice of God from being heard."
Recommended reading: The Power of Silence Against the Dictatorship of Noise by Cardinal Robert Sarah.