We write to introduce ourselves as a Jammer Expert, OEM & ODM Jammer manufacturer in China ! In countering the ever growing threat of remotely controlled improvised explosive devices (RCIEDs), Tangreat has invested heavily in the development of a range of State-of-the-art. Being an ISO 9000 / 9001 / 9004 / 19011: 2000 certified organization, we offer a voluminous rang of premium quality jamming products from multi band, very high power jamming systems, Vehicular Jamming system, Multi band Jamming system, Indoor and Outdoor Jammers ( Cellphone Jammers, GPS Jammers, Wireless camera Jammers ), for the protection of troop transportation, Military and Police checkpoints, large Governmental establishments, Bomb Disposal Squads and VIP convoys. All our products are consumer-oriented and we do our best to satisfy every potential or existed customer.