Motorola H780 Bluetooth Headset (Bulk Pack) CrystalTalk delivers background noise and echo cancellation using dual microphones and Motorola's exclusive audio solution Noise cancellation button enables you to hear the difference of the dual-microphone noise cancellation RapidConnect Flip microphone - Open to talk and close to save battery Multipoint - Connect with two compatible Bluetooth enabled phones simultaneously. No need to reconnect Up to 7 Hours Talking time and 33 Feet Wirelwss Range