DESC: The Sonic Ring Elite, model TR75 is Sonic Alert's top-of-the-line telephone ring signaler. The sleek, modern case has a lamp on/off button to allow the lamp to be used for signaling and normal room lighting. The power cord with unique pluglet (Plug-outlet combo) allows you to keep your table uncluttered. There is also an indicator light to remind you to turn on the attached lamp. In addition, its advanced design draws very little phone line power. This device sends a signal to all Sonic Alert remote receivers.