This OEM Samsung Blackjack SGH-i607 OEM Stereo Handsfree Headset allows you talk on the phone with your hands on other tasks, and it gives you stereo high quality sound when you listen to the music in your cell phone or when you play the games. It's compatible with Samsung Blackjack SGH-i607, SYNC SGH-A707, Black Carbon SGH-D900, SGH-T809, SGH-D807, SGH-T629, SGH-T519, SGH-T509, SCH-U420, SGH-T329 / SGH-T219