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: I saw your ad for the fitbit alta, could you tell me something about it?
Seller: Hello i'm selling this brand new fitbit for 100 dollars it's un open
Buyer: Could you tell me some of the features?
Seller: yes it's a large fit bit alta
Buyer: I see that. Does it monitor your sleep and heart rate?
Seller: yes i can go a little low but not to low
Buyer: Well since it is new I could give you 75 for it
Seller: sorry sir i can't go that low, it's brand new and retails higher than $100. How about $85
Buyer: Well since it is new 85.00 is okay. I will send you an offer
Buyer:
Seller: would you like for me to ship it
Seller:
electronics