2.5mm Audio Headset Adapter for Samsung A767 Propel, i907 Epix, SGH-T109, SGH-A137, A637, A837 Rugby, SGH-A237, Messager R450, SGH-A227, SGH-T339, SGH-T229, M310 Slash, A827 Access, R430 MyShot, SPH-i325 Ace, SGH-T819, SCH-R300, SCH-R610, Mysto, SGH-T739 Brand new non-OEM Convert headset adapter to 2.5mm. Adjust the audio directly from the cellular phone. Microphone on your cellphone headset will not work with this adapter.