In the cheaper price point, IEMs are probably the way to go for noise isolation. If you can get ear tips with a good seal, then the passive noise isolation should be good enough. I’d recommend something like the kz zsn pro (~$20) or the kiwiears cadenza (~$30), along with comply foam tips (~$15) for a perfect seal into your ear. If you have smaller ears like me, then kz IEMs can be a bit uncomfortable, so keep that in mind. If your budget stretches further, then you can try Etymotic ER2SE IEMs (~$100), which have triple flange tips that really plug your ears deep, but I definitely don’t find them comfy enough for long sessions.
If your device doesn’t have a headphone jack, an Apple USB C dongle (~$10) is plenty good enough for any IEMs, or you could get a Bluetooth DAC from Fiio starting at around $40 (for the longest time I had one doing double duty for my headphones and for Bluetooth audio in my car).
In the cheaper price point, IEMs are probably the way to go for noise isolation. If you can get ear tips with a good seal, then the passive noise isolation should be good enough. I’d recommend something like the kz zsn pro (~$20) or the kiwiears cadenza (~$30), along with comply foam tips (~$15) for a perfect seal into your ear. If you have smaller ears like me, then kz IEMs can be a bit uncomfortable, so keep that in mind. If your budget stretches further, then you can try Etymotic ER2SE IEMs (~$100), which have triple flange tips that really plug your ears deep, but I definitely don’t find them comfy enough for long sessions.
If your device doesn’t have a headphone jack, an Apple USB C dongle (~$10) is plenty good enough for any IEMs, or you could get a Bluetooth DAC from Fiio starting at around $40 (for the longest time I had one doing double duty for my headphones and for Bluetooth audio in my car).