Did they bring this out for security reasons ? since isn ' t it obvious having bunch of people in government depts leave this open for more hacking , bribery or blackmail but at a level that ' s hard to keep track of . <| sep |> As far as Sugu hiding her gaming , Kazuto was busy with government debriefs , physical rehab , moping about Asuna , visiting Asuna , trying to figure out why Asuna was still asleep , and above all else , avoiding Suguha at all costs because he was awkward around her after finding out they weren ' t real siblings . <| sep |> What in the fucking world are you even talking about ? And why the fuck is my group of friends the weirdo ? <| sep |> Noise canceling as in , electronic noise canceling is not really all that necessary with inear monitors . They ' re like earplugs they close the ear canal so well that very little outside noise will interfere . That ' s not really a requirement you have to cling to , in my opinion . Passive noise canceling means less electronics and gadgetry using up precious space in the earbud , meaning it can all be dedicated to music generation . The Shure SE series is my goto recommendation for IEM ' s . The most basic model I ' d recommend , the SE 215 , starts at about $ 100 . The range goes all the way up to the $ 1000 800 series . earphonesOh , and the reason the good noise canceling headphones need batteries is simply because there is an active computer inside them analyzing the noise coming in on the external mic and modulating the sound inside the can to cancel those external noises . It takes a fair bit of processing to do that in real time , a 3 . 5 mm headphone jack doesn ' t supply that kind of power . The milliwatts of power a headphone jack outputs is all needed to drive the actual headphone mechanism that generates the sound .