Beijing Kuaiyu Technology Co., Ltd. is a professional audio surveillance microphones manufacturer with around 10 years experiences in china offering total 10 models audio surveillance mics.Our "TRADIO" is the well known brands in China now and just selected as one of China's top ten most influential security brands in 2009.

Besides "TRADIO" ,our products also include high quality accessories of CCTV camera; telecommunication products etc. such as de-noising adapters,lightning proof camera power supply, Video to VGA high definition Converter;USB dialers (with caller ID), telephone voice recording cards/boxes ...

Why "TRADIO series audio surveillance microphones" is the NO.1 in China?
A)Monitoring range widely:
"TRADIO"has around 80% domestic market share. Total 10 models ,Monitoring range from 2 to 150sq.m, could meet your any need, no matter small room or big hall.

B)Easy installation:
The maximum wire transmit distance can reach 3km, and it only needs 12V DC power supply,they can connect directly to DVR, VCR, active loudspeaker or PC soundcard and anywhere CCTV is installed.

C)Top quality;Used widely;Choosed for Beijing Olympic Games:
Our gold key "TRADIO" widely used in banks,supermarkets, prisons, interrogation rooms, museums, auction halls, airport halls, school,hospital, stadiums etc

We are more professional with "TRADIO"in :
Police,monitorship,Judicatory,Safety,Army's department;
The prison audio surveillance system;
Education ,School audio room project;
Bank pick up sound,audio surveillance system;
Hall pick up sound,audio surveillance system.
Museum,audio surveillance system.
Platform of airport audio surveillance project.

What is the most proud of us is that,in 2008,the "TRADIO" mics were used in the "PAN GU DA GUAN" building, "Water Cube" of Beijing Olympics, T3 platform of Beijing international airport ,all of which were the most important project for Beijing 2008 Olympic Games.

Our favourable terms include:
1.If you manufacture CCTV camera,need built-in mics.We could design according your requirement.
2.Support OEM,could use yourself logo.
3.Once your quantity reach total 300pcs, shipment fee free.

Now we have cooperated with the companies of USA,meet itself design,the steady quantity every month and use itself logo.We have given the biggest support and the best price to make sure its best benefit.

Wish have good business start between us and wish our these high quality products could give you more benefit.
Kind remind:
Now,have customers complaint that some unethical manufacturer use the similar appearance products imitate TRADIO,poor quality. Beijing Kuaiyu Technology co.,ltd is the only owner and manufacturer of the TRADIO brand ,and with appearance patent in china.