ADESSO WKB-3000UB Black 86 Normal Keys 13 Function Keys 2.4 GHz RF Wireless Mini Keyboard w/Optical Trackball
Model#: WKB-3000UB
Review
Pros
The size, layout, and position of the trackball. I like having the trackball on the upper right and the mouse buttons on the upper left of the keyboard.
Cons
Weak RF signal susceptible to signal cutout. Input often not acknowledged. Imagine typing away and looking to see that about every 10th or 11th character is missing, that's what you get this this keyboard. Trackball control cuts out intermittently (even when only 12ft from receiver.) Also the mouse buttons on the top left are cheaply made. No crisp "click" when mouse button pressed. Buttons weak (poor manufacture quality.)
Final Thoughts
You could accomplish the same level of PC control throwing rocks at a wired keyboard across the room.