


(We measured three hours, but near enough is good enough.) There’s a complementary app, too, for iOS and Android, that lets you set smart alarms, pair a second Boom 2 for stereo sound, adjust the sound of the UE Boom 2 with a five-point equaliser, and download firmware updates remotely - very useful, especially since Ultimate Ears is working on an x-up feature that will let you pair dozens of Boom, Megaboom and Roll speakers simultaneously.

UE says that you’ll get 15 hours of battery life from the Boom 2, from a 2.5-hour charge through that microUSB port with the bundled 10-Watt USB wall charger and flat cable. On the spine, there are big volume controls - press both for an audible battery level reminder - and on the base is the microUSB charging port and 3.5mm stereo analog audio jack, both hidden behind waterproof doors, and a 1/4-inch tripod screw thread.
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On the speaker’s top you’ll find a slightly recessed power button with a LED light hidden behind it, and a slightly embossed multipurpose Bluetooth toggle button in front of that. It’s a cylinder, 180mm tall with a 67mm diameter, slightly tapering at its top and bottom where the tightly-woven hydrophobic fabric speaker grille meets the rubberised plastic base and spine. The UE Boom 2 looks almost identical to the UE Boom. Ports: microUSB 2.0, 3.5mm stereo analog audio.
