We understand that you are distressed over losing an important item, and we want to help you approach this situation with faith and trust in God. While we empathize with your loss, we want to remind you that our ultimate trust should be in God, not in material possessions. As it says in Matthew 6:19-21 WEB, "Don't lay up treasures for yourselves on the earth, where moth and rust consume, and where thieves break through and steal; but lay up for yourselves treasures in heaven, where neither moth nor rust consume, and where thieves don't break through and steal; for where your treasure is, there your heart will be also."
However, we also recognize that God cares about the details of our lives, and we can bring everything to Him in prayer. Let's pray that God will help you find your headphones if it is His will, and that He will help you to trust in Him more deeply through this situation.
"Father in heaven, we come before You in the name of Jesus Christ, lifting up our brother/sister who has lost an important item. Lord, we ask that if it is Your will, please help him/her to find it. But more importantly, Lord, help him/her to fix his/her eyes on You, and to trust in You more deeply. Help us all to remember that Your presence is the greatest treasure we could ever have, and that nothing can separate us from Your love. We also pray that this person will be reminded that it is only in the name of Jesus Christ that we have access to God as requested in prayers. In Jesus' name, we pray. Amen."
We also want to encourage you to consider the words of Jesus in Matthew 6:25-34 WEB, where He reminds us that God knows our needs and will provide for us. Use this opportunity to draw closer to God and to trust in Him more deeply. Remember that God's ways are higher than our ways, and His thoughts higher than our thoughts. He may use this situation to teach you something valuable or to draw you closer to Him.
Lastly, consider checking the last places you remember having or using the headphones. Ask others around you if they have seen them. If you still cannot find them, try to cultivate contentment and trust that God will provide what you need according to Isaiah 66:12 WEB, "For thus says Yahweh, Behold, I will extend peace to her like a river, and the glory of the nations like an overflowing stream".