Talk through glass intercom - INTERFON / INTERCOM / INTERKOM / TERMINAL MIKROFON

Designed to allow conversation through a glass partition. Typical applications are ticket booths, bank counters, petrol stations and receptions.

With adjustable gooseneck extended microphone and volume-adjustable rotary buttom at base
With extended-cable microphone outside for customers. 

-  Automatic one-to-one 2-way hands-free Communication.
- This product adopts mainframe and more ascendant Congressional MIC is integrative. Appearance is Handsome and voice is lifelike, clear and resonant. 
-  Individual volume controls for both master station And window sub station.  
- Used in any places where conversations need to be Assisted. 

Power supply...12 Vdc, 300mA
Audio output...350mV
Battery...9V (1 x PP3)
Battery life (hours)...15 - 20
Consumption...>30mA
Dynamic range...>=90dB
Image rejection...>50dB
RF output power...2mW
Sensitivity...10µV @ 60dB S/N
Signal to noise ratio...87dB
THD...< 1%