High-Precision Trackball, ELECOM DEFT PRO The trackball unit was used a few times at the company and then stored in a locker, so it's in good condition. The included cable, batteries, and USB are unused and in new condition as shown in the photos. The full set includes the instruction manual, USB, and cable. I do not have any pets. I am a non-smoker. Price is not negotiable. - Brand: ELECOM - Model Name: DEFT PRO - Type: Trackball - Included Items: Instruction manual, USB cable