The TRNR Maintenance Radio offers a wide array of innovative features that allow you to assume complete remote control of your irrigation system and communicate with maintenance and office personnel. It utilizes Hunter’s famous StraightTalkTM technology to provide a working radius of up to 3 km, and a simple, easy-to-use interface. For complete control of your system when and where you want it, the TRNR radio is your innovative solution. Frequency: UHF (450-470 MHz) Range: 3 km Power: 2 watts