AfterShokz Xtrainerz and Sony NW-WS623 are two waterproof headphones with IP 68. But are they the same in waterproof? Let’s have a look.

Whether you admit it or not, waterproof and dustproof is definitely one of the biggest selling points of all kinds of electronic products.The advertisement that Quan Zhixian put his Samsung mobile phone under the faucet is still fresh in people’s memory.
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https://www.gearbest.com/blog/new-gear/aftershokz-xtrainerz-vs-sony-nw-ws623-which-is-better-on-waterproof-7840