How does this new version of the B350-XT compare to the original product? The new B350-XT has an extended wireless range of 300 ft / 100 meters; added VoiceControl™ which enables you to take/reject calls using your voice; an IP54 rating for dust and moisture resistance; and a more comfortable headband and ear cushion. Blocks out background noise with 96% noise cancellation VoiceControl to answer or reject calls with just your voice Customizable Parrott Button for mute, speed dial, and more Pairs two devices at the same time for flexible connection Extended (up to 300-foot) range Durable and offering all-day comfort for calls and music Last a full day on the move with up to 24 hours talk time.