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This Booster extends your existing cellphone coverage in one to two rooms with a signal boosting range of up to 4000 sq. ft..

This 4G LTE 700mhz Band 12/17 Repeater works with AT&T Cricket U.S. Cellular carriers in the United States:

Compatible Devices: Android/iPhone/Tablet PC(Required SIM Card)
Support Users:Multi-users
Basic Signal required: 2-3 bars Outdoor
Operate Frequency: 700mhz Band 12/17
Frequency Range:Uplink 698-716MHz;Downlink 728-746MHz.
Booster Gain: Uplink 60±2dB; Downlink60±2dB
ALC(Automatic Level Control): ≧30dB(Uplink/Downlink)
Power Supply:110 V input,12V output
Booster I/O Port: SMA-Female Both
Indoor Omni Antenna Gain:3/5dBi
Outdoor Directional Yagi antenna Gain: 8dBi
How The Home 4G Cell Phone Signal Booster Works
1. Receives Signal
The outside Yagi antenna points to the cell tower to access voice and data signals.
2. Transmits Signal
The booster receives the outside signal from the outside Yagi antenna.The 50ft coaxial cable transfers the outside signal into the Booster/amplifier.
3. Boosts Signal
The booster amplifies the outside signal, and sends it to the inside Sucker antenna.
4. Expands Signal
The inside Omni antenna broadcasts the boosted signal to all cellular devices inside the home or Office.

This package include the Cell Phone Booster ATT, an indoor sucker antenna, an outdoor directional Yagi antenna, a power supply, a 50ft outdoor 4d coaxial cable, a instruction manual. att cell phone signal booster, at&t cell phone signal booster,att cell phone booster, att cell signal boos