Unit is bigger than expected. Phone audio volume was good but had an ocean noise during phone calls in background. Streaming music via iphone 4 was really clear but signal/sound degradation almost 2/3 to half of AUX cord. overall just okay of a product.

The unit sounds good to others when on calls. It sounds ok when streaming music though bass is a little flat. Unfortunately the battery does not last long 5 hrs is not enough. I'm always recharging and you can not use the unit while charging. The end of the cable that charges just fell apart and is broke. I purchased a solar power unit that self charges instead.