As advertised, this was a new Tesla Key Fob. It came with the battery installed and was quickly programmed for me by Tesla. Don't buy directly from Tesla when you can buy from eBay for less than half the cost for the EXACT same thing.
The key fob appears to be a new or like-new item. It paired right up with my Tesla in under 2 minutes and was very easy to do. I save a TON of money VS buying it from Tesla direct.
Arrived on time, works great Had to take to dealer so they could pair it up with Model S 100D. (My original one went swimming and did not make it out alive)