The Magic Jack USB PC to Phone Local & Long Distance VOIP Model A921 is a silver-colored USB device manufactured in 2008 by the brand Magic-Jack. It allows for wireless connectivity with speakerphone capabilities and Power Over Ethernet (PoE) functionality. With an interface that supports USB and DSL/Phone (RJ-11), this device provides a convenient and cost-effective solution for making phone calls from a computer or other connected devices. The model A921 offers a single phone line and includes the necessary features for local and long-distance communication.