Soundcore Liberty 4 Review and specs below. The Soundcore Liberty 4 NC reduce ambient noise by 98.5% , at least that’s what it says on the packaging. The new NC version of the Liberty 4 has the best active noise cancellation yet in a Soundcore in-ear and is according to the manufacturer “best in class”.
https://numberoneboats.com/soundcore-liberty-4-review-nc/
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