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Retractable earphone wire / Earphone wire

Retractable earphone wire
Retractable earphone wire

Retractable earphone wire is designed to avoid the trouble of twining ,while making the appropriate pull so that the earphones will not fall off.

University

Zhejiang Univercity

Zhejiang Univercity
Hangzhou, China

Design

Zhejiang Univercity

Zhejiang Univercity
Hangzhou, China

Lin Li