omfortable for all-day us.7.Vibration alert on call.8.Support apt-X technology.9.Exceptional audio with noise suppression and echo cancellation.10.Magnetic ear buds snap into place when not in use; music controls on neck strap.11.High quality guaranteed.Function characteristics:Bluetooth V4.0 version CSR8635Support voice to answer the phone.Supports Bluetooth Headset musicSupports music songSupport the last number redialVoice reporting function.Bluetooth Headset operation voice prompt function.S