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Optelec
corresponding Braille cell, generating a left or right mouse click at that point, or for
obtaining additional information about the contents of the Braille cell.
Thumb keys
At the front of the Braille Controller ten front panel keys are place, the so-called
thumb keys. Eight bigger keys are symmetrically aligned along the front of the ALVA
BC680. Two smaller buttons are located at the far left and right side of the front.
Pressing one of the eight bigger thumb keys will navigate left, right, up or down. By
pressing one of the smaller keys, you will return to the cursor position.
English
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