On April 16-19th 2008, we successfully took part in “China International Exhibition on Police Equipment (4th Event)” in Beijing Exhibition Center, which was organized by Ministry of Public Security.

QDC Covert earpiece which is designed and manufactured independently by ourselves attracted many professionals for the features of small size and high concealment.

Furthermore, Tactical Bone Conduction Headset and Tactical Noise Canceling Headset with hearing protection have obtained good reputation in the industry rely on their unique sound conduction way, high audio communication quality and strong noise canceling function.