[. . . ] ) Never shine the class 1 laser beam into a person's eyes, or stare into the class 1 laser beam. This is very dangerous and can cause instant temporary vision dysfunction! [. . . ] Your mouse uses a new generation technology ­ invisible laser module that replaces the traditional LED optical sensor and provides amazing tracking ability. the invisible laser module accurately scans the surface in 20 times sensitive of LED optical sensor. Use of controls or adjustments of procedures other than the user guide mentiones may result in malfunction or dangerous. It needs to be plugged in to your Notebook or PC by a USB port or a mouse port. Insert the Windows driver CD into the computer's CD-ROM drive when asked to do so. Using the ventilator To use the ventilator please use the ON/OFF button at the bottom side of the mouse. No part of this document may be reproduced or transmitted in any form by any means, electronic or mechanical, including photocopying, recording or information recording and retrieval systems without the express written permission of the manufacturer. Customer Service: If you encounter any problem with your Vent, please contact our local subsidiary, partner or dealer, or send us your inquiry to info@dicota. All the products and software mentioned above are registered trademarks of their respective owners. This symbol (crossed out bin wheelie symbol according to WEEE Annex IV) indicates separate collection of waste electrical and electronic equipment in the EU countries. Please use the return and collection systems available in your country for the disposal of this product. This symbol (crossed out bin wheelie symbol according to WEEE Annex IV) indicates separate collection of waste electrical and electronic equipment in the EU countries. [. . . ] This symbol (crossed out bin wheelie symbol according to WEEE Annex IV) indicates separate collection of waste electrical and electronic equipment in the EU countries. Please use the return and collection systems available in your country for the disposal of this product. [. . . ]