"Up for sale is a genuine, pre-owned Logitech M570 Wireless Trackball Mouse in dark grey/blue. 

Condition Note:
This mouse is fully working and operational. Please note that this listing is for the standalone mouse unit only. It does not include the USB wireless dongle receiver, batteries, or original packaging. It is perfect if you already have a Logitech Unifying USB Receiver or a compatible multi-device setup and need a replacement or spare ergo mouse! 

Cosmetically, the item is in good pre-owned condition with some standard light surface scuffs from regular desktop use. The blue trackball rolls perfectly smoothly and all button clicks are fully crisp and responsive. can see wear from hand use.