Executive Summary: Ultimate Ears WONDERBOOM 4 by MistAirHomeTL;DR: Portable Bluetooth speakers are the most counterfeited and most commoditized audio category on earth - every supermarket in every market sells a 3W to 30W portable BT speaker at prices that compete with a sandwich - yet most of the speakers that fail in the first three months fail for one of three reasons: an unverified IP rating that leaks in a beach shower, an unverified battery cell that swells in summer he···
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