CNET has a review of the LG HBM-550 and writes - “As we mentioned, the LG HBM-550 follows the LG Chocolate closely in style and design. It has a glossy black front and is very compact, measuring only 0.74×1.61×0.65 inches and weighing in at only 0.42 ounce. The multifunction button may feel a little flat to the surface of the headset, but there is a slight groove around it, making it easy to find by feel. It also yielded easily to pressure. On the left spine is the volume rocker, while the charger jack rests on top of the device. The volume rocker was easy to press, even when the headset was worn on the ear.”

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