SIGTRONICS RES-401 ADD STEREO TO YOUR INTERCOM 

Sigtronics RES-401 Add Stereo to your Intercom	Product Code: PN-803 Price: Check Latest Add full stereo to the SPA-400 intercom, with an added pilot isolate feature and 4 headset positions. Accepts input from a CD player, cassette player, AM / FM stereo receiver or Walkman. Music is muted when VHF / Comm is transmitting or receiving or when speaking on the intercom. Passengers can also be put on uninterrupted music if they desire.