Phonetone 65dB 3G CDMA 850MHz Cellphone Mobile Phone Signal Booster Repeater Amplifier with Directional Internal Panel Antenna and External GSM Yagi Antenna Type: Booster Color: Black/White Compatible Phone Manufacturer: All Phone work on 850MHz Compatible Carrier: All Carrier work on 850MHz Coverage: 2500 sq ft Frequency: 824-849MHz,869-894MHz Gain: 65dBi Connector: N-Female on both ends