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Built-In hands free for Mobile phones

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  The present hands-free cables using for mobile phones may became twists on usage. Like head phones to walk-man. Everytime we need to unwind the twists. For this, if we can have built-in hands free in a circular box, which will be like measuring tapes (winds internally in a circular box). One side, the jack could be kept outside which plugs into the cell and the other side speakers. This compact like hands-free box could have facility to attach with mobile phone hand set or could carry separatly. This box should be such a less in weight, which could be buttoned to shirt like the present hand-free cable.
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