Hands Free Corded Ear Piece Headset for Samsung T919 (Behold), i910 (Omnia), i907 (Epix), A767 Propel, T109, U650 (Sway), A837 Rugby, A237, T339, T229, M200, I325 Ace, I617 Blackjack 2, A747 SLM, M520, M510, R500 HUE, T729 Blast, T539 Beat, A517, A737, T439, T739, R300, R200, A827 Access [Retail Packaging] Hands Free Headset On/Off Switch will Function on Phones that support this Features Be Safe and legal Reduces radiation Comfortable to wear