[. . . ] Caution: To use this product properly, please read the user's guide before installation. Please adhere to the following warnings and safety instructions to prevent injury: 1. [. . . ] DICOTA Attack provides amazing tracking abilities, and the invisible laser sensor is much more accurate (up to 20 times) than traditional optical LED sensors. What is the difference of laser sensor: Speed button The sensor resolution can be selected between 800, 1600 and 2200 dpi. You can switch effortlessly from pixel-precise targeting to fast-twitch acceleration!Press "speed button" once: green light on, which indicates the current resolution is 1600 dpi; Press "speed button" twice: blue light on, which indicates the current resolution is 2200 dpi; Press "fire button" three times: red light on, which indicates the current resolution is 800 dpi; (The default sensitivity is 800 dpi when DICOTA Attack is initially connected with the computer). Press the fire button one more time, then there will be no light on the transparent wheel; click the left key of the mouse simultaneously to have a onebullet shot. (Default setting when DICOTA Attack is initially connected with the computer). Try one or more of the following: · Make sure you have installed the mouse correctly. ⷠMake sure the cable is plugged into the right mouse or USB port. Refer to your computer documentation for the correct port configuration. Disclaimer Information in this document is subject to change without notice. The manufacturer does not make any representations or warranties (implied or otherwise) regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any commercial damage, including but not limited to special, incidental, consequential, or other damage. 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. [. . . ] Please use the return and collection systems available in your country for the disposal of this product. Full USB port Forward/back button Ergonomic design LED lights indicate the speed status Full USB port Forward/back button Ergonomic design LED lights indicate the speed status Full USB port Forward/back button Ergonomic design LED lights indicate the speed status [. . . ]