The Mini Mag(TM) antenna comes factory tuned and ready to install. The magnetic mount not only provides quick installation, but also quick removal when going through car washes or switching vehicles. ItÕs ideal for applications requiring no holes drilled in the vehicle body. The low profile whip and the small strong magnet are excellent choices for low clearance applications. The single piece elastomer housing means there are no moving parts to install or break. It has been environmentally tested for temperature, humidity, and corrosion. Applications include conventional and trunked mobile radios operating in 800 MHz and 900 MHz. The Mini Magª antenna is covered by a Two Year Limited Warranty. All Warranty claims and questions should be directed to 1-800-422-4210.