magicJack is a device with a USB port that plugs into a computer and a phone jack that plugs into a standard phone, which allows the user to make phone calls to any phone in the U.S. for a fixed charge of $20 a year. It installs software on the computer automatically, but the software is difficult to remove and displays ads.
It is a computer peripheral that, in combination with telephony service from the related YMAX Corporation, provides Internet-based telephone service (VoIP) to the United States and Canada. The firm's primary product is a USB device that holds both the software necessary to place Internet-based telephone calls via a customer-supplied high-speed internet connection, and electronics (technically known as a SLIC, or Subscriber Line Interface) supporting conventional landline telephones to be plugged directly into same device. The products are promoted through television infomercials and a website.