Quality Cell Phone Headsets.
•Compatible with Samsung Helio Fin SPH-A513, A517, Helio Mysto SPH-A523, A737, SLM A747, Access A827, Ace SPH-i325, BlackJack II SGH-i617, M305, M510, M520, R200, Hue R500, R610, T339, T439, T409, Beat T539, T639, Blast T729, Katalyst T739, T819.
•Connect Any 3.5mm Universal Headset
•Volume Controls on the Side
•Switch for Mute/Unmute
•Microphone and send/end button included