Cellet 3.5mm pin to 3.5mm Hole Adaptor with On/Off Switch & Built in Microphone
Built in microphone with on/off switch  Convert your favorite stereo headset to handsfree earpieces  Compatible with: universal 3.5mm jack devices  Features:  - Microphone and send/receive button - On/Off feature will only work with phones that are compatible with such capability - Indicates an incoming call even while you are listening tomusicon your phone or PDA. The music stops when you receive an incoming call. - The music stops when you receive an incoming call Turn your own favorite stereo earpiece (Non microphone builtin earpiece) into handsfree headset.    Packaging: clamshell package Packaging may change without notice.   Compatibility  Samsung: Highnote M630, Delve R800, Eternity SGH-A867, TwoStep R470, Finesse R810, Instinct S30, Trance SCH-U490, Rogue U960, Messager II R560 / Vice R561, Instinct HD, Intrepid SPH-i350, Moment, Behold II, Mythic A897, Omnia II (CDMA), Caliber R850, Trill R520, Code SCH-i220, Omnia II i8000 (GSM), Seek, Reality, Restore M570, Rugby II A847, Messager Touch R630 / R631, Vibrant (Galaxy S), Intercept, Captivate (Galaxy S), Epic 4G (Galaxy S), Fascinate (Galaxy S), Intercept, Flight II  Motorola: ROKR Z6m, Krave ZN4, ZINE ZN5, Hint QA30, EM330 / EM28, Rival A455, Karma QA1, Debut i856, CLIQ, Droid A855, Crush, Devour, Backflip, Cliq XT / Quench, Droid 2  Pantech: Ocean 2, Pixi Plus (GSM)  LG: Dare VX-9700, Incite CT810, enV Touch VX-11000, Tritan AX-840 / UX-840, Chocolate Touch / 8575 Touch, Rumor Touch, Ally, Fathom, Prime GS390  Nokia: N96, N85, N79, 5800 XpressMusic, E63, E75, N97, N86 8MP, E72, N900, N97 mini, X6, Nuron 5230, C3, E5  Blackberry: 8300 Curve, 8310 Curve, 8320 Curve, 8130 Pearl, 8120 Pearl, 8330 Curve, 8110 Pearl, Bold
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Cellet
{"Item Weight": "8 ounces", "Special features": "Microphone", "Other display features": "Wireless", "Color": "Brown", "Manufacturer": "Cellet", "Date First Available": "September 29, 2010"}