Specifications:Material: ABSFrequency Range: 950-2150MHz Input Level Range: -40~-10dBmImpedance: 75Insertion Loss: 5.0dBPower Supply: DC13-18VOperating Temperature: 0-40Item Size: 10.9 * 6.2 * 4.2cm / 4.29 * 2.44 * 1.65inItem Weight: 84g / 2.96ozPackage Weight: 115g/ 4.07ozPackage Size: 18.8 * 14 * 4.3cm / 7.40 * 5.51 * 1.69in Features:Mini size and light weight, really portable.Designed with a knob for easier and quicker tuning.Connect to your LNB and receiver to the satellite finder to track the clearest setting for the satellite you wish to tune to.No external power or batteries required, power supplied from your satellite receiver.