Thanks for reviewing our product's. We (RYANS TELECOM  CO., LTD) are Korean leading IT Products Export Company

This product has developed based on preventing mobile ringing noise and keep a quiet atmosphere when necessary in public area in every continent in the world. You can install in churches, mosque association oil station, court, library and conference room (Refer to our catalogue). 

Frequency range is around 15-20 meters of radius (Total circle 30-40m).

 Our technologies

This product willnmake all the phones out of service when TURN ON.  The technology is of international standard. It is very durable and can support 4G generation of LONG TERM EVOLUTION (LTE).

It can cover a wide range of frequencies as well; GSM 900.1800.1900.and CDMA 800 ,850, 3G, 4G(just to name a few)

Machine installation/ A/S policy

The machineachines installation is very simple, just plug on and switch on.That is all, very simple.

This is a very update model, it doesn't required a complicated installation procedure.