Bin, for optical mice with light-emitting diode is not suitable in this 'Kensington Dual Gel Pad' fallen, since they, as already the reviewer 'Mistersifter79' in April 2008 reported. Both my connected with cables opt. Mouse with LED (Brand Trust), as well as the wireless mouse of the same make, failed to work.
This begs the question why the manufacturer did not consider it necessary to carry out in developing this product with all the different mouse types function tests. Product Care would also mean (see above) to install appropriate instructions on the packaging after neg. Reviews.
The seller said in a complaint and return of the goods that a mouse with trackball and a laser mouse would function (optical mouse with laser diode).
Pity Outwardly I liked the product.