3g Cell Phone Repeater Amplifier W-cdma 2100mhz Mobile Signal Amplifier for Home Color: White Compatible Phone Manufacturer: All Phone Work on 2100MHz Coverage: All Carriers Work on 2100MHz Frequency: 55dBi Gain: N-male Connector: Power Supply: AC 100-240V; DC 12V/2.0A Features: 4.80 x 4.29 x 1.06 in Dimension: 0.99 lb