Archive: Optimized to works with 4G Router. Improve 3G/4G signal reception on the 4G router by 2 times. Ideal for weak signal areas.<br />▫Wideband cellular frequency 698~2700MHz<br />▫Supports all of 2G/3G/4G mobile networks<br />▫High-gain 9.5dBi and low V.S.W.R <1.5<br />▫Directional antenna with narrow beamwidth<br />▫Waterproof protection designed for outdoor