With music, it's often what you don't hear that tells you whether it's any good. The absence of good orchestration or arrangements, or the lack of tonal quality in a voice, means the band/artist probably should have spent more time in the studio (or possibly in rehab).
Such is the case with portable speakers — especially those that connect wirelessly via Bluetooth. You can only pack so much instrumentation into a small device, and the Bluetooth wireless signal has its shortcomings as well.
The JBL Charge has a lot going for it on paper. The micro-sized speaker, which measures about 2 by 6 inches (a bit bigger than the $200 Beats Pill but smaller than the $200 Logitech UE Boom) has a battery which lasts 12 hours. Yet, while you might not notice at first, there's something missing besides heft. Unfortunately, to go small in size, you also lose a lot in audio quality.
The Charge sports a unique design. It's not just an elongated tube like the UE Boom, but instead has some extra hinged accents. On one end, there's a USB port for charging a USB-powered device. You can expect to charge an iPhone 5 twice using the Charge's battery. If you're only playing music, the Charge lasts about 12 hours; long enough for a day at the beach and a few hours back at the palapa. The availability of black, orange or blue models ups the style quotient for Bluetooth speakers.
There's a micro-USB port, but it's tucked away behind the speaker, making it a little hard to find. The Charge is designed to be used horizontally or vertically, resting on its built-in stand, or with the bass port — which produces lush, low-range audio — facing up. One minor glitch: Since the USB charge port is on the other end, you can't connect a device and use the speaker in a vertical position at the same time.

