The GST-B500 line brings together smaller components and high-density mounting,continuing to deliver Bluetooth connectivity and solar power charging, but in an evenslimmer profile. The Carbon Core Guard absorbs external shocks for true G-STEELtoughness, and the comfortable fit complements your unique way of life. Downsizedbutton guards offer slim yet ample buttons that are easy to operate. The bezel istreated with multiple finishes to deliver exceptional metal textures from every angle,for a truly sophisticated presentation with its own special look.