I was doing antenna work. I carried it around because I didn't know when I'd need it, so the box has scratches and dents. The contents are new and unused. Please refrain from purchasing if you are concerned. The UHF booster U43A has a frequency range of 470-710MHz and provides a maximum gain of 43dB. - Model: U43A - Frequency Range: 470-710MHz - Gain: 28, 33, 43dB - Output Voltage: 105dBμV - Power Supply Model: PSH20 - Power Input: DC15V 0.07A Thank you for viewing.