Works with: X5-57D/X5-58D/X5-70MD |X6-57D/X6-58D/X6-70D/X6-70MD |OP-57D | MOP-70MD |Glaser Engine.Strongest surface adoptability.Works on 99% surface:including transparent glass and shining tile.Works even better than normal Laser engine.(patent pending)Why GLASER is greater than common laser mouse?Because GLASER has the solution to resolve the problem with most of the laser mouse - fails to operate smoothly on shining and glassy surfaces. The innovative Dual Focus Lens on GLASER is designed to not only work both normal and shining surfaces, but also on the transparent glasses. Dual Focus Technology has combined the present laser and optical engine and provides the best tracking performance to date. Furthermore, the light from GLASER Mouse is proven to be harmless to eyes.It is highly recommended to always use the most recent driver version available.Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games.Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.