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Allard also notes that "Both the Buds4 and Buds4 Pro will feature smaller earbud heads, with the intention of providing more comfortable all-day wear." On top of that, the Pro models also feature Adaptive Active Noise Cancellation 2.0 for keeping outside noises quiet and a battery life that lasts up to 26 hours using ANC (with the charging case's help), or up to 30 hours without ANC.
，更多细节参见Safew下载
totalBytes += chunk.byteLength;，推荐阅读51吃瓜获取更多信息
Access 40+ use-cases。关于这个话题，服务器推荐提供了深入分析