lightweight design for all-day wearing comfort noise-canceling microphone for clearer conversations windsmart provides wind-noise reduction technology for optimal sound clarity versatile headset for multiple bluetoothr devices headset folds for easy storage one-touch call control buttons now in silver for a sleek, updated look features : - windsmart technology for superior wind sound protection; - noise-cancelling microphone for superior voice transmission - multipoint technology allows seamless switching between two bluetooth audio devices - award-winning headset design for all-day wearing comfort - one-touch call answer/end, last number redial and voice-activated dialling - bluetooth version 1.2 (backward compatible) for improved interference resistance and faster pairing parallel imported warranty: warranty one year delivery within 2-4 business days