Battery Powered Audio Doorphone Intercom Non-visual Intercom two-way Intercom Security System doorbell

Product Description:

Specifications:
Model Number: RL206
Voltage: DC6V(8x AA battery)(4 in each handset)
Output sensitivity: <60mV (frequency 1000Hz)
Frequency response: +- 3dB(300Hz-3400Hz) 
Noise voltage: <10mV 
Ring sound level: >70dB(AT 0.5m) *
Quiescent current: <5uA 
Intercom working current: <100mA 
Color: white 
Talk time: unlimited, free calls 
Power Source: Battery
Application:Family,School,Restaurant,Office and so on


Installation and use:
1. Set a double wire line screwed onto the back of the bases to connect each set together(wire line is not included),Within 30m use distance,you can use multicore cable to connect each set,in right ways,1-1,2-2,in each back of the phones,30-80m use distance,you can use copper wire to connect.
2. Insert 8 cells 1.5V AA batteries (4 in each handset)(alkaline) ,into the cabinet of the talkback pair
3. Press the call button to listen after the ringing , lift the handset microphone and you wait for the other to pick up the call
4. While talking, please speak into the microphone

*** Package includes: 2  Intercoms Doorbell 

Product Feature:

1. Operation distance 200m, 2-line connected, run wiring from point A to point B. Each handset connects to the other,with a new ABS plastic, durable
2. Each phone has a call button. The caller pushes a button that will make the receving handset ring loudly, realize the two-way radio,the sound quality is clear, no noise
3. They are battery powered,even worked in a blackout, and so far, months later with daily use, they are still going strong
4. This is a decent and inexpensive intercom system that uses 8 AA (4 in each handset) and a double wire line screwed onto the back of the bases to connect each set together,clear communication via,easy to install
5. Suitable for dwelling houses, tier buildings, multiple apartments, offices, factories and so on