Aiphone AT-406 Box set with AT-206 white audio master station and AT-306 white audio sub master station

Aiphone AT-406 Box set with AT-206 white audio master station and AT-306 white audio sub master station.

Key features:

• Set includes 1 AT-206 master station and 1 AT-306 sub master station
• Master station calls all connected sub stations
• Sub stations call the master station only
• Powered by 6V DC or 4 AA batteries
• Up to two additional sub stations can be added (AT-306)