Signalbox 65dB 850/1700MHz Cell Phone Signal Booster Color: Black Compatible Phone Manufacturer: All Phone Work on 850/1700MHz Compatible Carrier: All Carriers Work on 850/1700MHz Frequency: 824-849MHz/1710-1755MHz; 869-894MHz/2110-2155MHz Gain: 65dBi Connector: N-female Power Requirements: Power Supply: AC 100-240V; DC 12V/2.0Av Dimension: 4.80 x 4.29 x 1.06 in