Speaker Selector for 4 pairs of speakers. Use one amp or receiver to send signals to 4 sets of speakers.
Listen LR-200 3-Channel FM Receiver LT-LR-200-072The LR-200-072 Standard 3-Channel FM Receiver (72 MHz) offers a solution for assistive listening where simplicity and cost are important. The unit gives the user a choice between three different preset frequencies that will be transmitted in the area. The receiver can be used with any current Listen headphone. Limited lifetime warranty.Please...