X-keys O-Trac Primary Trackball Mouse USB/PS2 with Opto-Mechanical Tracking for cursor Control, Made in USA

X-keys O-Trac Primary Trackball The X-keys O-Trac Primary Trackball offers a unique scrolling feature that may not be intuitive for some users. The green button must be held down to activate the trackball as a scroll wheel, which can make scrolling a slow and cumbersome process. However, this issue may be resolved through the use of macros. One positive aspect of the trackball is its size, as it is larger than expected. This makes it easy to use and adds to its overall quality. In fact, one reviewer mentions that it is perfect for their 3-1/2 year old son, who also uses it in his classroom at school. The trackball is capable of providing an effective solution for individuals with mobility issues, such as a young daughter with cerebral palsy. The primary downside of the X-keys O-Trac Primary Trackball is its price. Some customers find it to be too expensive, despite its effectiveness in addressing specific needs. However, if cost is not a major concern, this trackball can be a worthwhile purchase. Overall, the X-keys O-Trac Primary Trackball offers a unique scrolling feature that may be inconvenient for some users but is useful for others, especially those with mobility issues. Its larger size and overall quality are praised, although the high price may deter potential customers.