NBT GROUP(HK)CO.,LIMITED is the foremost innovator in the filed of mobile phone jammer,After established 
, we are growing fast at a speed of exceed 50 percents every year, and have become a leading brand in this 
filed. Now NBT GROUP(HK)CO.,LIMITED is the first manufacturer to come to a production of more than 150 
thousand every month, about 18 percents of worldwide market, hold a large market share .NBT GROUP(HK)
CO.,LTD is doing its best to be the best supplier all over the world. we have agents in Europe , United States
, Saudi Arabia, Brazil etc. And we are always exploring potential markets worldwide. We have become the 
largest mobile phone jammer, mobile phone blocker manufacturer and supplier. Our clients come from many 
countries, like Plaped Company which serve for national defence of Spain.Butterfly system from USA, etc. And 
we research infrared jamming, thermal imaging interference technology and other military technology for 
SHAHRI Company from Saudi Arabia, and SHAHRI supply us a lot of research funds.
powerful R&D and advanced technology and equipment make us grown rapidly , now we have a researching 
team with 30 professionals and more than 250 workers. The strength of researching take the lead in the 
world . And we have various RF Material Research Center, RF Technology Research Center, and New product 
research Development. Our products have our own intellectual property,distinctive manufacturer process and 
powerful core competitiveness . We have five production lines and three shifts a day to maximize customer
satisfaction in a minimum time . On the product detection, We take use of most advanced HP band origin 
analyzer. On the material, we take use of good Capacitance and Resistance, the error of product is only 5%, 
which are the best material. On the core power amplification IC, uses grade a IC, never take use of inferior IC, 
or fake IC, at the same.Trust us,trust yourself!