Usually ships in 2-4 days.
ISRETROVC
If you want to play music in a room that doesn't need a Room Station, use the IST RETRO Volume Control to change the volume of external speakers (sold separately) that connect to your IST RETRO Music & Intercom System. This in-wall control has a rotary knob that allows you to adjust the volume of music and messages without a Room Station, plus a source button that lets you switch between the radio and MP3s.
The IST RETRO Volume Control installs in a standard single-gang box. It wires into your speakers with 16- or 18-gauge 2-conductor wire, and into your Master Station with the existing wiring (requires 3 wires).
Since 2005, IntraSonic Technology (IST) has been enriching the residential audio experience by manufacturing robust yet easy-to-use home audio systems. The IST product line offers a premium home audio selection, including music distribution systems, video door intercom systems, and associated accessories. Envelop yourself "inside your sound" with IntraSonic Technology.