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Shure’s e500PTH earbuds squeeze a tweeter and two woofers into a featherweight design you can wear all day long. And with its push-to-hear (PTH) function, you can do just that, leaving the sound-isolating buds in place while listening to the flight attendant’s safety lecture. Flipping the PTH switch dampens the music and turns on a small microphone that pumps outside sounds into your ears. $550; shure.com















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