Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week
Good tactile feelings.
Small and thought.
Standard AAA battery
HID device for mouse and keyboard
Trackball quality is low, so cursor positioning may be difficult, especially using in one hand only (you need to rotate this damned ball, then stop, firmly hold it in a needed position, then press a mousebutton, usually by finger of another hand)
Standard HID device, supported in any modern OSes. Very useful companion for any modern "smart" TV or android mediaboxes.
Except of trackball's surprisingly low quality, this device is above my expectations.
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