Ritron callboxes are built to allow instant, wireless two-way communication from any fixed location, inside or out, to the main facility, enhancing productivity without adding personnel or infrastructure. The callbox can be PC-programmed to be compatible with virtually any brand of VHF or UHF business-band radios already in use. The radio can be powered by alkaline batteries for standalone applications, or it can operate on an external power supply or an optional solar kit. The solution is engineered to provide long-range line-of-sight communication of about 1 mile; for extended range, an external antenna can be added to the callbox. Ritron offers two callbox models: the tamper-resistant heavy-duty XT enclosure, or the light-duty Q Series callbox molded in high-impact polycarbonate material. Each model is housed in a weatherized gasket-sealed enclosure with stainless-steel fasteners.