JBL Xtreme 4: Two-minute review“Unleash powerful sound everywhere” is the tagline of JBL’s Xtreme 4 Bluetooth speaker, but does it live up to the hype? The short answer is, well… yes. The Xtreme 4 paints a dynamic aural picture in a bid to feature among the best Bluetooth speakers to have graced our testing process, with well-defined high frequencies, full-bodied mids and a pumping bass. It’s worth flagging, though, that its true power isn’t let loose straight out of
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