It's difficult to get a lot of power out of a small speaker: You generally need more physical volume to produce more audio volume. Ultimate Ears pushes those limits with the UE Wonderboom, a tiny Bluetooth speaker that delivers a sound loud enough to fill a room. The Wonderboom doesn't produce the cleanest highs or distortion-free deep lows, but it's portable, rugged, and fairly priced at $99.99. The JBL Charge 3 ($95.99 at Amazon) delivers a bit more audio finesse in a larger package, but the Wonderboom is a solid alternative. Design The Wonderboom ($68.00 at Amazon) is a squat, rounded cylinder shaped vaguely like a Japanese lantern. It's available in six different colors, including black, blue, gray, orange, pink, and purple. It measures 3.6 inches around, 4.0 inches high, and weighs 15.2 ounces, making it too large to slip in a jacket pocket, but a fine size for a bag. A small, thick elastic loop on the top lets you easily clip the speaker to your bag or hang it from a hook...
The Ultimate Ears UE Wonderboom is a small, rugged Bluetooth speaker that produces a surprising punch of sound for its size.
Powerful for its size; Waterproof
Can distort on very deep lows at maximum volume; Lacks high frequency crispness