62dB 850MHz Mobile Phone Signal Booster Repeater Amplifier with Whip Antenna and Yagi Antenna Type: Booster and Antenna Color: Blue Compatible Phone Manufacturer: All Phones Work on 850MHz Compatible Carrier: All Carriers Work on 850MHz Support Network: 3G, GSM, CDMA, W-CDMA Coverage: 1500 sq ft Frequency: 850MHz Gain: 62dB