The cell phone signal booster frequency range: 824 ~ 849MHz 869 ~ 894MHz 70dB Works for AT&T VerizonCordova Wireless Alltel Cricket and more (not compatible with Nextel)</br>The cell phone signal booster repeater can solve your poor signal reception problem inside your houseso you can enjoy clearer phone call or faster mobile date inside your house. Say goodbye to dropped calls in your home. Get fewer dropped calls better voice quality</br>Nice performance  Low Operating TemperatureHigh-Gain Linear PowerUltra-Low Noise ReceiverFull-Duplex Communication ModeUp to 70dB Gain The cell phone signal booster could work for about 2500 sq.ft in open space without obstacle Perfect whip and Omni-Direcational Antennas kit For Multiple Devices and Users</br>the cell phone signal booster repeater is used for VillageGarageBasementHomeOffice and so on.</br>One Year Manufacturer Warranty  30-day money-back guarantee high Gain booster repeater  All parts included in the kit  easy to install</br></br>Product Description</br></br>NOTE : <br> <br> 1. This cell phone signal booster doesn't require a direct connection to your phone?? but rather works wirelessly. It can also work for multiple users at the same time. <br> 2. You should get 2-3 bars</b> of stable signal in the location where the outdoor antenna is fixed in. <br> <br> Specification : <br> <br> Features:<br> Frequency range: 824 ~ 849MHz?? 869 ~ 894MHz<br> Max Output Power: 22dBm <br> Max Gain: 70dB <br> I/O Port: N-Female on both ends<br> Main Power: AC 100~240V / DC 12V 2A<br> <br> Package Contents: <br> <br> * 850MHZ 70dB cell phone signal booster repeater <br> * Indoor whip Antenna <br> * Outdoor Omni-Directional Antenna With 32feet Cable <br> * Screws <br> * AC Adapter <br> * English User Manual <br> <br> Installation Guide: <br> 1.Check and find a place where your cell phone can receive the best signal outside your house