Kensington Expert Mouse Wireless Trackball, model K72359 (M01497-M). Open box, like new: it was barely used and is in excellent condition.
Connects by Bluetooth or by the 2.4GHz USB receiver, and runs on AA batteries (it is not a corded or rechargeable model). It has the large 55mm trackball, the scroll ring and four programmable buttons. Works with Windows, macOS, Linux and Chromebook.
Included: the trackball and the USB receiver. Batteries are not included.Condition notes: open box and barely used, with only light dust that I will wipe off before shipping. No chips, cracks or missing parts that I know of.
Ships free from Brooklyn, NY via USPS Ground Advantage within 1 business day. Please ask if you want more photos.