Фото: Алексей Филиппов / РИА Новости
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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.，详情可参考爱思助手下载最新版本
12月9日，《儒藏》数字化项目启动仪式现场。受访者供图
Lots of printing flexibility