Philips FIDELIO L1 Wired Headphones于 2019 年 2 月 1 日首次发布。此版本的Philips FIDELIO L1 Wired Headphones具有 40 个驱动器尺寸、26 欧姆阻抗、105 dB 灵敏度和 12Hz-25,000Hz 的频率响应，提供更清晰、更锐利的声音声学体验。
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