High Quality GSM Repeater 850MHz Cell Phone Signal Booster 75db Gain Amplifier Kit + Log-periodic and OmniCelling Antenna Color: Black Compatible Phone Manufacturer: All Phone Work on 850MHz Compatible Carrier: All Carriers Work on 850MHz Frequency: 824-849MHz 869-894MHz Gain: 75dBi Connector: N-female Power Requirements: Power Supply: AC 100-240V; DC 12V/2.0A Dimension: 4.80 x 4.29 x 1.06 in