Cell signal booster helps the indoor users to receive the signal from the outdoor mobile base station through downlink amplification, which makes the weak signal area in the coverage of base station. Then the mobile signal will be transported to the base station through uplink amplification, which actualizes video communication.

VJJT networks Ltd. was founded in 2006, which is located in China. As the first home-grown wireless bridge and wireless network device manufacturer in China, VJJT combines R&D, manufacturing &sale together and adopts the latest technology and professional service systems to establish reliable network to be a professional high-tech company in the world.