The Byron Smartwares Wire Free Audio Door Intercom System is a 2 way intercom, suitable for use in 1 apartment/household. It has a heavy-duty metal outdoor unit with a surface mounting bracket. The indoor unit has a push button that acts as the door opener. It is fitted with a digital transceiver for optimal reception and provides interference free digital signal. The bell volume is adjustable.

Connecting possibility for 12V door opener (BYRDB5005)