The Radio Shack 3-line Caller ID (CID-937) is a brand new device with free shipping, featuring a sleek beige design and a wall-mountable style. This Caller ID display box is equipped with a 3.5mm jack connector and offers Ethernet and DSL interfaces for easy setup. With a simple yet efficient design, the Radio Shack CID-937 is a practical addition to any home phone setup, providing clear and concise caller ID information for added convenience.