Write a letter to a friend that you forgot something at his place and informing about it
Date: __ /__ /____ (Date) From ______, Dear _______, I hope this letter finds you in good health. I am doing well here. I am writing this letter in regard to the last stay in the fall I had at your place. I clearly remember that I had taken my _______ (speaker/headphones/earphones) to your place.