2.5mm Female to 3.5mm Male Headset Adapter Headphone Jack Converter Supports Hands-free Microphone JKL for AT&T iPad Mini 3 - AT&T LG G Pad 7.0 - AT&T Amazon Kindle Fire HDX 7 - Walmart.com
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Plantronics M220 Mobile Headset for Most Phones with Standard 2.5mm Headset Jack | eBay