The full-size, around-ear Bluetooth headphones feature active noise cancellation and double as a headset for making phone calls.

这种大尺寸的包耳式蓝牙耳机能有效地隔绝噪音，并且还能作为打电话用的耳麦。

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6 6 After the contract enters into force, the Designer may require termination or cancellation of the contract and the Designer should return the down payment in double.

6合同生效后，设计人要求终止或解除合同，设计人应双倍返还发包人已支付的定金。

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6 6 After the contract enters into force, the Designer may require termination or cancellation of the contract and the Designer should return the down payment in double.

6合同生效后，设计人要求终止或解除合同，设计人应双倍返还发包人已支付的定金。

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