AT&T BTH01 FreeAgent Bluetooth Headset, Black Bluetooth 2.1 + EDR, Class2 (A2DP, AVRCP, HSP, HFP) Talk Time: 14h *Standby: 340h Acoustic Echo Cancelling / Active Noise Suppression Voice Prompts Easy Access Controls for music, volume and calls Made for iPad, iPhone, iPod, Android, BlackBerry, most smartphones and any mp4 players