no it isn’t....
this thing is really Small Small ! FYI
There isn't actually any more input lag vs a wired mouse. It's actually faster than certain wired mice lol. I think linus tech tips done a test on YouTube I have been using the same lithium battery on mine since December last year using performance mode.. The battery lasts longer + its lighter 😁
Fantastic mouse, use it on my PC and Xbox. can’t notice any delay etc