説明
You can use the conversation between the inside and outside of the window for the customers’ evaluation of the salespersons, and for the supervisor’s evaluation of each windows.
1. 使用法: the bank staff use the master station to talk with guests. and the guests use the substation can talk with bank staff as well.
2. Installation: the master station is installed in the working place and the sub station out of the working room. Just one wire connection between the master station and substation.
3. Applicaton: bank, restaurant ,stock office, hospital, post office, Box office, Ferr charge station Where guard glass again theft is installed. 
Functions and Features:
1. Two-way voice intercom communications technology, automatic identification of processing speech signals during a call, does not require any action;
2. Auto dual-way intercommunication without pressing any button; Anti-interference and noise-free function
3. Dual-way audio record output; Dedicated anti-side tone processing chip with aoto-mute function
4. Has special side tone processing chip and the movement noise function can effectively improve the noise
5. The voice from this system is clear and natural; Has top-quality speaker and high-sensitive microphone. Especially the metal tube microphone is deal for the counter and the dual-way intercommunication
6. With power on /off and volume knob can control volume by worker
7. Main base Dimension:108*94*43mm
Substation dimension: 68*20mm
8.材料 :plastic
Technical parameter:
| working voltage | DC12V/0.5A |
| input voltage | AC 110-240V |
| work power | 2w,100Hz-15Khz |
| Inside microphone | -48db 20Hz-20Khz |
| Outside mirophone | -48db 20Hz-16Khz |
| cable length | 1.8M |
Packaging List:
1 x Dual-way counter interphone
1 x External speaker
1 x Charger
4 x Adhesive
1 x English User Manual





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