The Alpha Communications®/S.T.R.™ HT40 QwikBUS™ Series handsets are designed to work as an apartment type handset intercom station, using a minimal of wiring. All HT40 handsets in a building can be wired on only two (2) common (loop) wires! Choose from White or Anthracite (Charcoal) colors.
Crystal-Clear Half-Duplex Voice Operation
Easy Installation - Only 2 Common (loop) Wires Required
Eavesdrop Privacy - Inter-Communication capable
Clear Voice Fidelity using Electret Condenser Microphones