Competive price wireless video door phone intercom system

 Competive price wireless video door phone intercom system    

Two way radio is mainly used in police, civil aviation, transportation, water conservancy, railway, manufacture, building, service and so on. It is used to connect and command between members, and improve the ability to solve the accident. Two way radio is used more and more.

Press the launch button (also called PTT key) and began to speak, after finished his speech must release the PTT key, otherwise not hear each other talk (with the habit after unknowingly trouble). You do not have to speak loudly when, otherwise it will cause distortion voice, just at a distance walkie 5-10CM sentenced to normal volume speech.

Basic Knowledge

1. The ordinary distance is 3-5 km, but with the tall building or hill, the distance is shorter correspondingly. When supported by the internet, the distance can reach tens of kms.

2. Under the condition of interne, the two way radio can dial the phone. But for the single radio's ordinary communication, it has no function of dialing phone.

3. People no need to pay for the communication with ordinary two way radio. No matter how frequently you use, you just pay a few dozen of dollars per unit for the frequency covering. If using the public two way radio, then no need to pay any fee.

Attention about using two way radio safely

1. Don't put the two way radio in the range of air bag while it spread. If the two way radio in the covering of air bag, it may hurt the people in the car while spreading quickly.

2. Excepting the two way radio is authorized especially, you must turn off the two way radio under the potential explosion environment. The electric spark will cause explode or fire.

3. Don’t change or charge the battery under the potential explosion environment.

4. Turn off the two way radio first when close to the exploded and primer area to avoid any explode.