The Logitech Ultimate Ears Mini Boom, an excellent option if you're looking for good sound without a hefty price tag, is featured on Heavy's list of the best portable bluetooth speakers. At just $79.99, its sound quality beats most competitors in the same price range, though it has a smaller frequency response than more expensive options like the Bose SoundLink Mini. Less resonant bass tones aside, it earns a competitive edge with its solid volume output, small size and long battery life. The Mini Boom measures 3.9 x 3.3 x 6.3 inches and weighs a manageable 9.6 ounces. It holds a 10-hour battery life and can be charged via Micro USB. It's speakerphone ready and can pair with a second Mini Boom via a smartphone app for either a more amplified or more stereo-separated sound (after being firmware updated). This same firmware update enables features like custom equalizer settings and an alarm feature. Buy the Logitech Ultimate Ears Mini Boom or read customer reviews here. Want to browse more great options for portable bluetooth speakers? Check out Heavy's list of the Top 10 Best Portable Bluetooth Speakers.