Techwise's WLAN amplifier is an advanced device which incorporates bi-directional TDD technology to expand transmission distance and enhance receiver sensitivity of WLAN devices such as access point and WLAN adapter card. The amplifier could improve the transmission condition where access point or WLAN adapter card lacks the power to transmit long distance or encounters interference. It could be used in ISP vendors, Hot Spot, college campus, and enterprise branches or offices for wider coverage and better service quality. Designed for outdoor application, the amplifier has adopted robust housing and waterproof measures to protect amplifier from severe outdoor environment.