This is my second time purchasing these kind of ear buds from SoundPEATS and i am genuinely surprised how better these get in every upgrades. This one is more comfortable to wear and i found it more convenient to pair and connect with my mobile phone (android). I tried using them for my surface laptop and the sound conversion is surprisingly good. It's my third day using these, i haven't charged the case yet whilst i have used the buds for atleast 2 to 3 hours daily during travel. Once, again the only negative point i found was how my sound quality drops during calls. It's like there's something to be look into it as it's the same issue with the other earbuds. But, i'm not much of a phone call person, i use these ear buds whilst listening music and playing games so for that 40 bucks i feel like the product is giving way more than it is demanded.