Invention Grant
US09445182B2 Headphones with rotatable ear cup 有权
可旋转耳罩的耳机

Headphones with rotatable ear cup
Abstract:
A headset having rotatable ear cups. The headset includes a headband having a first end and a second end. An earphone unit is coupled to each end of the headband. The earphone unit includes an ear cup that is rotatable between a closed position and an open position.
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