The solar-powered Motorola RRDN4367 Solar ACB Call Box from Crosspoint Communications provides quick, push-to-talk communication. Because there is no door to open, it is easily accessible. It's ideal for making restaurant, hotel or taxicab reservations, or announcing a delivery at an entry door. The indoor/outdoor wall mount aluminum enclosure has a white powder-coating and is .090 inches thick. It measures 20”H x 14”W x 7.5”D and features a thick, clear Lexan faceplate cover. It includes an activation ringer, antenna and set of small reflective decals.