Signalbox 70dB 1900MHz Cell Phone Signal Booster Repeater with Whip and Yagi Antennas Frequency Range: 1850-1910MHz/1930-1990MHz Standard Supported : Support 2g GSM from Airfire Mobile  Airfire Mobile  Bug Tussel Wireless Cellular One Cgi Alaska Chariton Valley Cincinnati Bell Wireless Commnet Wireless Corr Wireless Epic Touch I Wireless Immix Wireless Indigo Wireless iSmart Mobile Long Lines Wireless Maine Pcs Metro Pcs Mosaic Mobile Nep Wireless Newcore Wireless Northeast Wireless Oklahoma Western Simmetry Sprint T-Mobile Telna Mobile Union Telephone Company US Cellular Verizon Wireless Westlink Communications. Support 3G from AT&T Wireless Sprint US Cellular Verizon Wireless. Max. Gain (dB) : 70dB It will be sent by UPS. It will reach US within one week. Power Supply : Input AC 90-260V, Output DC 12V/ 2.5A