Signalbox 62dB DCS GSM CDMA WCDMA 850MHz Cell Phone Signal Booster Amplifier with Outdoor Yagi and Indoor Whip Antennas (Black Cable) Frequency Range: 62dB 824-849MHz/869-894MHz Standard Supported : 2G/GSM 3G/UMTS CDMA WCDMA NOTICE: Please make choice before buying it. If you do not sure the Repeater's frequency you need, we can help you select a right one for you.we have all USA frequency amplifier .so feel free contact us please. I/O Port : N-female on both ends Power Supply : Input AC 90-260V, Output DC 12V/ 2.5A