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A30 Special sits flat, stays in while tossing, has no connectivity issues, and the battery lasts all night.
“Super flat in the ear. Don't even fall out overnight and I toss/turn a lot. No connectivity issues and the battery life keeps them alive for the whole night and then some.”
Having used both, finds the A30 superior to the Ozlo in every way except long-term comfort.
“I too have used both and find the sound cores superior in every way, minus long term comfort like you said.”
A30 noise cancellation works for snoring partners and they suit side sleepers, though the tight seal can itch.
“The A30s do have pretty good noise cancellation for snoring partners/etc. I also like that they are comfortable for side sleepers.”