VHF48.5~ 233MHz UHF:450~862MHz Radio: 12~18db TV:VHF 22±3db /UHF20±3db Impedance:50ohm Length:5.0M + Plug Working Voltage:DC10.5~16V Working Current:10~35mA Working Temperature:-35C° ~+75C° Stick to the front or rear windshield