This a clearance item available at a reduced price. 

The Aiphone IE-8HD is a submaster station handset to be used as a substation for rooms in the Aiphone IE-8 series.

This handset offers a variety of features such as door release at entrances, selective and all-call intercom between stations, call transfer, different call tones, and adjustable volume.

With the Aiphone IE-8HD, door call-in is announced with either a two or four-stroke chime. It also features a handset for private communication, selective door release control, and chime volume control.

IE-8HD Features: 

• Selective call or all-call between handsets
• Sub handset to communicate with a maximum of two IE series door stations.
• Includes intercom features as well as private conversation features
• simple 4 conductor wiring between handsets
• Works with the Aiphone IE-8 Series
• A good choice for commercial, educational, healthcare settings, and more
• Easy installation - only required 4 wires from each entrance, and 4 wires between room stations
• Manufacturer's warranty included