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RJ9 to 3.5mm Telephone Adapter - Convert Headset to Smartphones

About this item
Connector: Gold plated 4Pin 3.5mm headphone JACK; 4P4C RJ9 female Adapter.
Ideal for smartphones or transferring to headphones.
Compatible with RJ9/RJ10/RJ22 headsets to most smartphones with a 3.5mm headphone jack.
Does not work with RJ11 (which is the size of the phone jack in the wall, larger than headset phone jacks).
Size: 5.67 x 3.15 x 0.47 inches.

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First Listed on Newegg	March 15, 2026

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Item#: 9SIC5F4KTV2364