Building upon some of its most popular prior Bluetooth audio products, JBL has debuted the fully waterproof Charge 3 ($150) and Clip 2 ($60) speakers, as well as three in-ear headphones: the advanced active noise-cancelling Everest Elite 100 ($199), and two versions of the Under Armour UA Headphones Wireless ($180-$250), one with an integrated heart rate monitor…

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