This is a set of the K270 wireless keyboard and the M570 wireless trackball. Logitech - K270 Wireless Keyboard - M570 Wireless Trackball Mouse - USB unifying receiver: 1 (can connect up to 6 unifying devices) Everything in the photos is included. The keyboard box has some damage, so please consider it as a bonus. It was working until recently when I removed it from my PC. Please understand that we cannot accept returns if it does not work. Please purchase with your understanding. Immediate purchase and price negotiations are welcome. Thank you for looking.