MAIN OVERVIEW FEATURES: Maximum On-axis Coverage: 330 ftMinimum Frequency: 30 kHzMaximum Frequency: 60 kHzInput Voltage: 110 V AC,220 V ACHeight: 1.4"Width: 2.6"Length: 4.1"Weight (Approximate): 9.41 ozPackage Contents: 1 x IREXT Transmitter1 x IREXT Receiver1 x IR Extender Probe2 x Power Adapter1 x Instruction ManualCertifications & Standards: FCCCEEnvironmentally Friendly: YesEnvironmental Certification: RoHSLimited Warranty: 2 Year