Excerpt: Works fine. The USB transmitter fits neatly in the opening in the end opposite the buttons. Completely out of the way for storage or when not needed. Push the rear end of the top button to eject the transmitter when needed.
Excerpt: use a lot of batteries and the snap to free the USB attachment cannot be locked so it pops up very easily when in the briefcase and will use the battery. no turn off button pro: its size, nice appearance and easy to take w you.