How a cell phone signal booster works: A cell phone signal booster uses an outdoor antenna to search for cell phone signals in the area. It captures those signals and boosts their power with a signal booster. An indoor antenna broadcasts the strengthened signal so that your phone can receive it.

Product Description：

The SQ-850 kit allows you to get better voice and data with fewer dropped calls, improved voice quality, faster uploads and downloads. It boosts cell signals up to 32x, enhances 2G 3G 4G for buildings up to 2000 sq ft. Specially for Verizon AT&T 2G 3G. All components needs for installation are including in one package.

• Frequency: Band 5 uplink 824-849MHz, downlink 869-894MHz
• Operating voltage: AC100 ~ 240V, DC5V/2A
• Compatible with: Verizon AT&T 2G 3G, U.S. Cellular 2G 4G LTE
• Coverage: up to 2000 sqf
• Device: Supports any phones, including iOS, Android, Windows Phone systems.
• User: multiple user at the same time
• Kit: outdoor antenna, indoor antenna, cell phone booster, power supplier, cable
• Applications: Can be used for apartment, hotel, office, basement of buildings, coffee shop and shopping mall etc.

Purchase Information:

1. This cell phone signal booster can only make the weak signal stronger, but it can't create signal, that's means it won't give you any help in an area where there is no signal at all.
2. If you don't know what is the frequency of your mobile phone, we suggest you visiting “frequencycheck.com” for the right cell frequency.
3. The indoor and outdoor antenna is best to keep the distance of more than 25 feet, preferably separated by walls. The outdoor antenna is preferably installed horizontally in a better signal area and toward a cell tower. The mounting pole is preferably non-metallic, such as a drainage PVC pipe.