Built with three high-audio-amplitude-capture (HAAC) microphones and one of the most advanced loudspeakers available for smartphones, people can record and play back the sound just like they first heard it, all the way up to 140db - the sound equivalent of an airplane taking off.

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Whether that entails chatting up the person beside him on an airplane or taking his staff out for a round of drinks after work, getting out and hearing from people--what they like and, more important, what they don't like--has proved enormously valuable for Branson.

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