3g Cell Phone Repeater Amplifier W-cdma 2100mhz Mobile Signal Amplifier for Home Color: White Compatible Phone Manufacturer: All Phone Work on 2100MHz Compatible Carrier: All Carriers Work on 2100MHz Frequency: 1920-1980MHz 2110-2170MHz Gain: 55dBi Connector: N-male Power Requirements: Power Supply: AC 100-240V; DC 12V/2.0A Dimension: 4.80 x 4.29 x 1.06 in