The CB 4-r emergency call box is a good choice for dorm and building entrances, hallways and transit centers. The economical communication unit designed for wall or pole installations in interior and exterior applications offers you additional space for front-facing graphics. The all-steel housing and emergency speakerphone meet the need for a highly vandal resistant unit, while providing a cost effective and reliable solution. The user friendly LED-lighted faceplate is designed for maximum reliability and ease-of-use. The optional remote mount combination beacon/strobe kit also allows you flexibility throughout the job.