Designed for outdoor use</br>Tri-Band (800 & 1900 MHz and iDEN)</br>Omni-directional antenna - does not need to be pointed toward the cellular tower</br>Easy to install</br>3 dBi Gain</br></br>Product Description</br></br>The SC-130-M is an omni-directional vehicular antenna. It's compatible with all Cellular, PCS and iDEN providers. Designed for mounting the antenna to a vehicle mirror for maximum efficiency. Omni-directional antennas gather cell signals from all sides and do not need to be pointed towards a cellular tower.</br><br/>http://www.amazon.com/gp/product/B00V556ZTY