Kensington SlimBlade™ Pro Wireless Trackball, Rechargeable Battery, Bluetooth 2.4GHz Connection Options Black/Gray (K72085WW)

Customers find the trackball mouse to be a phenomenal piece of equipment with a sleek design, smooth rolling ball, and excellent connectivity options including wireless with dongle and Bluetooth. However, the scrolling function receives mixed feedback, with some finding it very good while others consider it not the best. Moreover, reliability and usability are mixed aspects - while some say it works right out of the box and takes a short learning curve, others report issues with Mac compatibility and find it difficult to use. The button responsiveness also gets mixed reviews, with some appreciating the easily programmable buttons while others find them too clicky.