Given a text passage as input comprising of dialogue of negotiations between a seller and a buyer about the sale of an item, your task is to classify the item being sold into exactly one of these categories: 'housing', 'furniture', 'bike', 'phone', 'car', 'electronics'. The output should be the name of the category from the stated options and there should be exactly one category for the given text passage.

Buyer: Hi, I am interested in your headphones
Seller: Great I'm asking $150
Buyer: Is that price negotiable?
Seller: Sure I'll come off a little so make an offer and I'll let you know. They have only been used twice and are really nice.
Buyer: That's awesome. $75 cash? I can also pick them up from your house today and pay cash or venmo you the money now. 
Seller: I'm afraid you a bit low; half off for like new condition hurts.
Buyer: What did you originally pay?
Seller: I paid $150 for them and I only used them on to flights and put them away.
Buyer: If the headphones cost the same price brand new, then I'll just do that then. I'll pay $100, final offer
Seller: Agreed, you got a good deal at $100. Thanks
Seller: 
Buyer: 

electronics