Motorola Rokr S7-HD Stereo Bluetooth Headset:
MotoRokr S7-HD is lightweight and compact with good audio quality. It has an outer circle jog dial controls.The Rokr S7-HD consists of two round earpieces connected with a 12.5-inch cable. Each earpiece measures 1.8 inches in diameter and 0.47 inch thick, and is padded with a thin piece of foam.

The Rokr S7-HD is meant to be worn with the cable behind the neck, and each earpiece is equipped with a round ear clip for securing the earpiece onto the ear. You put it on by sliding the bottom of the clip above the top of your ear and then rotating the clip so that it fits the shape of your ear.