对于那些蓝牙不允许的情况下，你可以在家里使用直接连接使得MM 550在任何地方一个超级质量要求的情况耳机附带的音频电缆。

For situations where Bluetooth is not permitted, you can use the included audio cable for a direct connection - making the MM 550 at home in any situation where a super quality headphone is required.

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