Foldable, lightweight and easy-to-store treadmill

New treadmill I bought six months ago, now I have no need for it. The treadmill is almost brand new, used only a few times. Easy to store, fully foldable and fits easily under the sofa or bed. Comes with a holder for laptop, iPhone, or iPad as shown in the picture. Includes Bluetooth headphones, but honestly I haven't tested them. Other specifications are shown in the attached image from the same website where I purchased it. I bought it for 950, selling for 500, and open to reasonable negotiation without dropping the price.