Initially, the mouse makes a good impression, but everything is spoiled by a further problem with the left key. What to change is also not clear, firstly, the prices are somehow insane, and secondly, there is no guarantee that the quality will be better. I want to buy and forget for years, at least for years of warranty about problems. And then the warranty is two years, but in less than a year the device fails and correspondence begins with support for more than a month with a request for a replacement. Support also gives questions and recommendations stupidly according to the script, such as blow through, rearrange the connector, etc. Tell me, if the key sticks, why advise you to rearrange the connector and similar tips? You write that your tooth hurts, and you are advised to take cough pills.