Dual Way Window Intercom System E331plus Microphone for Bank or Ticket Window

Features:
Automatic two-way intercommunication without pressing any buttons, with anti-interference and noise-free functions. Can also support two-way audio recording output.
Adopts two-way voice intercom communications technology, can automatically identify and process speech signals, not any operation required during a call. 
Dedicated anti-side tone processing chip with auto-mute function, can improve the voice efficiently.
Application of fully automated call control. The integrated design of microphone of external machine and speakers, can achieve the direct connection to the host, easy and simple to install.
Inside and outside the two-way voice signal output(recording by the bank teller), and a stereo jack output mode, can prevent voice recording function controlled by the power switch and the function buttons.
The auxiliary machine can be hung on the wall or pasted on the glass by the double-sided adhesive delivered.
Two-channel adjustment with channel dynamic indicator, is more convenient to use.
The internal volume knob and the external sound knob can adjust the internal and external volume respectively. The green IN indicator above the regulator  indicates the speaking of host during the intercom, and the OUT indicates the  speaking of slave.
 
Specification:
1. Hands free two-way talkback full automatic.             
2. Clear sound .High-quality speaker and high-sensitive microphone, the voice is realistic and clear 
3. Reminder light.There are voice transmission indicator to prompt the working condition
4. with volume knob. the volume of internal and external can be adjusted . 
5. With power on /off knob      
6. High power;3W high power speaker, widely used in many applications, such as bank, clinic, government,store, pharmacy, and so on
Technical Parameters: 
Working voltage: DC12V 
 Material : High quality ABS 
Working current: ≤300mA 
Microphone : 45dB±2dB 10Hz-15KHz
Output power of sub-base Speaker: 3W  
Output power of master:2W
Environment term: -10oC~60oC 
Cable Length : 3M ,black 
Main base :148*98*33mm Sub-base: 80*22mm 
Box size :  21*13*8CM