A metronome that pulses on your wrist

Jefferson Graham reports from the NAMM show in Anaheim, California, where musicians, music stores and manufacturers to see the latest merging of music and tech. Highlights include a pulsating metronome that operates via an app and a new kind of computer mouse that is controlled by your foot. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.