Invention Grant
US09055364B1 Earset having an automatic rewinding unit of ball/wire spring type 有权
具有球/线弹簧类型的自动重绕单元的花束

Earset having an automatic rewinding unit of ball/wire spring type
Abstract:
An earset has an automatic rewinding unit of a ball/wire spring type. In the earset, an earphone cable extends from a wheel by a desired length if a user pulls the earphone cable, and the drawn earphone cable is rewound back into the wheel if the user pulls the earphone cable slightly.
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